/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b09bf87
[2020-10-16 12:08:53,154 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-16 12:08:53,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 12:08:53,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 12:08:53,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 12:08:53,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 12:08:53,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-16 12:08:53,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-16 12:08:53,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-16 12:08:53,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-10-16 12:08:53,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-16 12:08:53,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-16 12:08:53,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-16 12:08:53,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-16 12:08:53,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 12:08:53,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 12:08:53,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 12:08:53,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 12:08:53,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 12:08:53,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 12:08:53,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 12:08:53,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 12:08:53,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 12:08:53,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 12:08:53,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 12:08:53,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 12:08:53,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-16 12:08:53,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-16 12:08:53,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-16 12:08:53,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-10-16 12:08:53,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-10-16 12:08:53,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-16 12:08:53,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-10-16 12:08:53,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 12:08:53,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 12:08:53,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf
[2020-10-16 12:08:53,321 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-16 12:08:53,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 12:08:53,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 12:08:53,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-16 12:08:53,324 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-16 12:08:53,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 12:08:53,324 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-16 12:08:53,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-16 12:08:53,325 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-16 12:08:53,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-16 12:08:53,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 12:08:53,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 12:08:53,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 12:08:53,327 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-16 12:08:53,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-16 12:08:53,327 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-16 12:08:53,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-16 12:08:53,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 12:08:53,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-16 12:08:53,328 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-16 12:08:53,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-16 12:08:53,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 12:08:53,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 12:08:53,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 12:08:53,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 12:08:53,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-16 12:08:53,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 12:08:53,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 12:08:53,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 12:08:53,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 12:08:53,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 12:08:53,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 12:08:53,668 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-16 12:08:53,669 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-16 12:08:53,669 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i
[2020-10-16 12:08:53,737 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e13648e81/85675221923a4809b3ed7a22f12331e2/FLAGeef1c3979
[2020-10-16 12:08:54,250 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-16 12:08:54,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i
[2020-10-16 12:08:54,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e13648e81/85675221923a4809b3ed7a22f12331e2/FLAGeef1c3979
[2020-10-16 12:08:54,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e13648e81/85675221923a4809b3ed7a22f12331e2
[2020-10-16 12:08:54,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 12:08:54,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 12:08:54,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 12:08:54,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 12:08:54,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 12:08:54,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:54" (1/1) ...
[2020-10-16 12:08:54,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd39ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54, skipping insertion in model container
[2020-10-16 12:08:54,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:54" (1/1) ...
[2020-10-16 12:08:54,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-16 12:08:54,676 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-16 12:08:55,136 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:08:55,149 INFO L203 MainTranslator]: Completed pre-run
[2020-10-16 12:08:55,202 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:08:55,294 INFO L208 MainTranslator]: Completed translation
[2020-10-16 12:08:55,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55 WrapperNode
[2020-10-16 12:08:55,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 12:08:55,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 12:08:55,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 12:08:55,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 12:08:55,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 12:08:55,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 12:08:55,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 12:08:55,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 12:08:55,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
[2020-10-16 12:08:55,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 12:08:55,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 12:08:55,365 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 12:08:55,365 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-16 12:08:55,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-10-16 12:08:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 12:08:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 12:08:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 12:08:55,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 12:08:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 12:08:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 12:08:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 12:08:55,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 12:08:55,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-10-16 12:08:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-10-16 12:08:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 12:08:55,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 12:08:55,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 12:08:55,439 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-10-16 12:08:55,822 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 12:08:55,822 INFO L298 CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 12:08:55,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:55 BoogieIcfgContainer
[2020-10-16 12:08:55,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 12:08:55,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 12:08:55,827 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 12:08:55,830 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-16 12:08:55,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:08:54" (1/3) ...
[2020-10-16 12:08:55,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a31a51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:55, skipping insertion in model container
[2020-10-16 12:08:55,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:55" (2/3) ...
[2020-10-16 12:08:55,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a31a51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:55, skipping insertion in model container
[2020-10-16 12:08:55,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:55" (3/3) ...
[2020-10-16 12:08:55,834 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i
[2020-10-16 12:08:55,844 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 12:08:55,844 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 12:08:55,852 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 12:08:55,853 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 12:08:55,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,883 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,883 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,884 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,884 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,885 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,886 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,886 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,886 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,887 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,888 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,905 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:55,908 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 12:08:55,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 12:08:55,944 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-16 12:08:55,944 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-16 12:08:55,944 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 12:08:55,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 12:08:55,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 12:08:55,945 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-16 12:08:55,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 12:08:55,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 12:08:55,958 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 12:08:55,959 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow
[2020-10-16 12:08:55,962 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow
[2020-10-16 12:08:55,964 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow
[2020-10-16 12:08:56,011 INFO L129 PetriNetUnfolder]: 2/68 cut-off events.
[2020-10-16 12:08:56,011 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 12:08:56,017 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-10-16 12:08:56,020 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260
[2020-10-16 12:08:57,170 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51
[2020-10-16 12:08:57,278 INFO L132 LiptonReduction]: Checked pairs total: 2579
[2020-10-16 12:08:57,278 INFO L134 LiptonReduction]: Total number of compositions: 58
[2020-10-16 12:08:57,285 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow
[2020-10-16 12:08:57,313 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states.
[2020-10-16 12:08:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states.
[2020-10-16 12:08:57,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 12:08:57,324 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:57,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:57,326 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:57,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:57,332 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times
[2020-10-16 12:08:57,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:57,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576406085]
[2020-10-16 12:08:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:57,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576406085]
[2020-10-16 12:08:57,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:57,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:57,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514919215]
[2020-10-16 12:08:57,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-10-16 12:08:57,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:57,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-10-16 12:08:57,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-10-16 12:08:57,536 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states.
[2020-10-16 12:08:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:57,569 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions.
[2020-10-16 12:08:57,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-10-16 12:08:57,570 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-10-16 12:08:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:57,589 INFO L225 Difference]: With dead ends: 362
[2020-10-16 12:08:57,589 INFO L226 Difference]: Without dead ends: 298
[2020-10-16 12:08:57,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-10-16 12:08:57,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-10-16 12:08:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2020-10-16 12:08:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-10-16 12:08:57,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions.
[2020-10-16 12:08:57,673 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8
[2020-10-16 12:08:57,674 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:57,674 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions.
[2020-10-16 12:08:57,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-10-16 12:08:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions.
[2020-10-16 12:08:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 12:08:57,676 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:57,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:57,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 12:08:57,677 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:57,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:57,677 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times
[2020-10-16 12:08:57,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:57,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084414624]
[2020-10-16 12:08:57,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:57,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084414624]
[2020-10-16 12:08:57,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:57,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:57,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195650613]
[2020-10-16 12:08:57,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:08:57,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:57,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:08:57,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:08:57,809 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states.
[2020-10-16 12:08:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:57,870 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions.
[2020-10-16 12:08:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 12:08:57,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-10-16 12:08:57,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:57,874 INFO L225 Difference]: With dead ends: 330
[2020-10-16 12:08:57,874 INFO L226 Difference]: Without dead ends: 266
[2020-10-16 12:08:57,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2020-10-16 12:08:57,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2020-10-16 12:08:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states.
[2020-10-16 12:08:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions.
[2020-10-16 12:08:57,923 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9
[2020-10-16 12:08:57,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:57,924 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions.
[2020-10-16 12:08:57,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:08:57,924 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions.
[2020-10-16 12:08:57,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 12:08:57,926 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:57,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:57,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 12:08:57,927 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:57,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times
[2020-10-16 12:08:57,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:57,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719906584]
[2020-10-16 12:08:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719906584]
[2020-10-16 12:08:58,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:08:58,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147979384]
[2020-10-16 12:08:58,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:58,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:58,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,054 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states.
[2020-10-16 12:08:58,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,127 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions.
[2020-10-16 12:08:58,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-10-16 12:08:58,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-10-16 12:08:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,130 INFO L225 Difference]: With dead ends: 290
[2020-10-16 12:08:58,131 INFO L226 Difference]: Without dead ends: 242
[2020-10-16 12:08:58,131 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-16 12:08:58,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2020-10-16 12:08:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242.
[2020-10-16 12:08:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states.
[2020-10-16 12:08:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions.
[2020-10-16 12:08:58,145 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10
[2020-10-16 12:08:58,145 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,145 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions.
[2020-10-16 12:08:58,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:58,146 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions.
[2020-10-16 12:08:58,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 12:08:58,148 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 12:08:58,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1654538757, now seen corresponding path program 1 times
[2020-10-16 12:08:58,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237147416]
[2020-10-16 12:08:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237147416]
[2020-10-16 12:08:58,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:08:58,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901426720]
[2020-10-16 12:08:58,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:58,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:58,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,252 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states.
[2020-10-16 12:08:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,308 INFO L93 Difference]: Finished difference Result 302 states and 815 transitions.
[2020-10-16 12:08:58,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 12:08:58,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2020-10-16 12:08:58,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,310 INFO L225 Difference]: With dead ends: 302
[2020-10-16 12:08:58,310 INFO L226 Difference]: Without dead ends: 140
[2020-10-16 12:08:58,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-10-16 12:08:58,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-10-16 12:08:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2020-10-16 12:08:58,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2020-10-16 12:08:58,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 354 transitions.
[2020-10-16 12:08:58,326 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 354 transitions. Word has length 11
[2020-10-16 12:08:58,326 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,326 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 354 transitions.
[2020-10-16 12:08:58,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 354 transitions.
[2020-10-16 12:08:58,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:08:58,328 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 12:08:58,329 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,332 INFO L82 PathProgramCache]: Analyzing trace with hash -234537171, now seen corresponding path program 1 times
[2020-10-16 12:08:58,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240356392]
[2020-10-16 12:08:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240356392]
[2020-10-16 12:08:58,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:08:58,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028992944]
[2020-10-16 12:08:58,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:58,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:58,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,428 INFO L87 Difference]: Start difference. First operand 140 states and 354 transitions. Second operand 5 states.
[2020-10-16 12:08:58,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,477 INFO L93 Difference]: Finished difference Result 176 states and 428 transitions.
[2020-10-16 12:08:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 12:08:58,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12
[2020-10-16 12:08:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,479 INFO L225 Difference]: With dead ends: 176
[2020-10-16 12:08:58,479 INFO L226 Difference]: Without dead ends: 80
[2020-10-16 12:08:58,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2020-10-16 12:08:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2020-10-16 12:08:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2020-10-16 12:08:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states.
[2020-10-16 12:08:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions.
[2020-10-16 12:08:58,484 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 12
[2020-10-16 12:08:58,484 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,484 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions.
[2020-10-16 12:08:58,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions.
[2020-10-16 12:08:58,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 12:08:58,485 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 12:08:58,485 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,486 INFO L82 PathProgramCache]: Analyzing trace with hash -627503362, now seen corresponding path program 1 times
[2020-10-16 12:08:58,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078710669]
[2020-10-16 12:08:58,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078710669]
[2020-10-16 12:08:58,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:08:58,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60159130]
[2020-10-16 12:08:58,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:08:58,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:08:58,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:08:58,569 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states.
[2020-10-16 12:08:58,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,607 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions.
[2020-10-16 12:08:58,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 12:08:58,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2020-10-16 12:08:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,609 INFO L225 Difference]: With dead ends: 91
[2020-10-16 12:08:58,610 INFO L226 Difference]: Without dead ends: 69
[2020-10-16 12:08:58,610 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states.
[2020-10-16 12:08:58,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69.
[2020-10-16 12:08:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states.
[2020-10-16 12:08:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions.
[2020-10-16 12:08:58,613 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14
[2020-10-16 12:08:58,614 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,614 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions.
[2020-10-16 12:08:58,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:08:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions.
[2020-10-16 12:08:58,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-16 12:08:58,615 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 12:08:58,615 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,616 INFO L82 PathProgramCache]: Analyzing trace with hash 822538733, now seen corresponding path program 1 times
[2020-10-16 12:08:58,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762407093]
[2020-10-16 12:08:58,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762407093]
[2020-10-16 12:08:58,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 12:08:58,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120801410]
[2020-10-16 12:08:58,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:58,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:58,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,715 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states.
[2020-10-16 12:08:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,761 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions.
[2020-10-16 12:08:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 12:08:58,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-10-16 12:08:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,763 INFO L225 Difference]: With dead ends: 65
[2020-10-16 12:08:58,763 INFO L226 Difference]: Without dead ends: 50
[2020-10-16 12:08:58,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 12:08:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2020-10-16 12:08:58,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2020-10-16 12:08:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states.
[2020-10-16 12:08:58,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions.
[2020-10-16 12:08:58,780 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15
[2020-10-16 12:08:58,780 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,781 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions.
[2020-10-16 12:08:58,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:58,781 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions.
[2020-10-16 12:08:58,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-10-16 12:08:58,781 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 12:08:58,782 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,782 INFO L82 PathProgramCache]: Analyzing trace with hash -246333940, now seen corresponding path program 1 times
[2020-10-16 12:08:58,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952018375]
[2020-10-16 12:08:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952018375]
[2020-10-16 12:08:58,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-10-16 12:08:58,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738991259]
[2020-10-16 12:08:58,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 12:08:58,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 12:08:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 12:08:58,847 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states.
[2020-10-16 12:08:58,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,893 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions.
[2020-10-16 12:08:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-10-16 12:08:58,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16
[2020-10-16 12:08:58,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,894 INFO L225 Difference]: With dead ends: 43
[2020-10-16 12:08:58,895 INFO L226 Difference]: Without dead ends: 37
[2020-10-16 12:08:58,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-10-16 12:08:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-10-16 12:08:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2020-10-16 12:08:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-10-16 12:08:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions.
[2020-10-16 12:08:58,897 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16
[2020-10-16 12:08:58,897 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,897 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions.
[2020-10-16 12:08:58,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 12:08:58,898 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions.
[2020-10-16 12:08:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-10-16 12:08:58,898 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:08:58,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:58,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-16 12:08:58,899 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:58,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:58,899 INFO L82 PathProgramCache]: Analyzing trace with hash -570484421, now seen corresponding path program 1 times
[2020-10-16 12:08:58,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:58,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292509714]
[2020-10-16 12:08:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 12:08:58,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292509714]
[2020-10-16 12:08:58,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:58,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 12:08:58,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418459891]
[2020-10-16 12:08:58,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:58,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:58,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:58,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:58,953 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states.
[2020-10-16 12:08:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:58,976 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions.
[2020-10-16 12:08:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 12:08:58,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-10-16 12:08:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:58,977 INFO L225 Difference]: With dead ends: 36
[2020-10-16 12:08:58,978 INFO L226 Difference]: Without dead ends: 0
[2020-10-16 12:08:58,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-10-16 12:08:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 12:08:58,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 12:08:58,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 12:08:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 12:08:58,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2020-10-16 12:08:58,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:58,980 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 12:08:58,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 12:08:58,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 12:08:58,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-16 12:08:58,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:08:58 BasicIcfg
[2020-10-16 12:08:58,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 12:08:58,986 INFO L168 Benchmark]: Toolchain (without parser) took 4373.41 ms. Allocated memory was 140.0 MB in the beginning and 246.4 MB in the end (delta: 106.4 MB). Free memory was 100.3 MB in the beginning and 180.5 MB in the end (delta: -80.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,987 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.54 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 161.0 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,989 INFO L168 Benchmark]: Boogie Preprocessor took 26.22 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,990 INFO L168 Benchmark]: RCFGBuilder took 460.37 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 134.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,991 INFO L168 Benchmark]: TraceAbstraction took 3157.48 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 133.8 MB in the beginning and 180.5 MB in the end (delta: -46.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-16 12:08:58,995 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.3 MB in the beginning and 119.8 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 681.54 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 161.0 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 203.9 MB. Free memory was 161.0 MB in the beginning and 159.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 26.22 ms. Allocated memory is still 203.9 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 460.37 ms. Allocated memory is still 203.9 MB. Free memory was 157.1 MB in the beginning and 134.7 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3157.48 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 133.8 MB in the beginning and 180.5 MB in the end (delta: -46.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
687 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 49 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal
- PositiveResult [Line: 7]: 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 183 SDtfs, 209 SDslu, 286 SDs, 0 SdLazy, 131 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...