/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b09bf87
[2020-10-16 13:50:08,070 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-16 13:50:08,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 13:50:08,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 13:50:08,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 13:50:08,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 13:50:08,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-16 13:50:08,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-16 13:50:08,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-16 13:50:08,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-10-16 13:50:08,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-16 13:50:08,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-16 13:50:08,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-16 13:50:08,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-16 13:50:08,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 13:50:08,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 13:50:08,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 13:50:08,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 13:50:08,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 13:50:08,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 13:50:08,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 13:50:08,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 13:50:08,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 13:50:08,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 13:50:08,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 13:50:08,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 13:50:08,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-16 13:50:08,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-16 13:50:08,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-16 13:50:08,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-16 13:50:08,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-16 13:50:08,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-10-16 13:50:08,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-16 13:50:08,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-16 13:50:08,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-16 13:50:08,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-16 13:50:08,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-16 13:50:08,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-16 13:50:08,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 13:50:08,148 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-McrAutomaton-WP.epf
[2020-10-16 13:50:08,196 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-16 13:50:08,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 13:50:08,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 13:50:08,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-16 13:50:08,198 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-16 13:50:08,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 13:50:08,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 13:50:08,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 13:50:08,200 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-16 13:50:08,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-16 13:50:08,200 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-16 13:50:08,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-16 13:50:08,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 13:50:08,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-16 13:50:08,202 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-16 13:50:08,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-16 13:50:08,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 13:50:08,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 13:50:08,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 13:50:08,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 13:50:08,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-16 13:50:08,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 13:50:08,203 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true
[2020-10-16 13:50:08,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 13:50:08,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 13:50:08,204 INFO L138 SettingsManager]: * Interpolant automaton=MCR
[2020-10-16 13:50:08,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 13:50:08,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 13:50:08,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 13:50:08,548 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-16 13:50:08,549 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-16 13:50:08,550 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i
[2020-10-16 13:50:08,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82d084130/e8297ca9e8024d119425f6da588f3ff4/FLAG470c848a9
[2020-10-16 13:50:09,187 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-16 13:50:09,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe035_rmo.opt.i
[2020-10-16 13:50:09,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82d084130/e8297ca9e8024d119425f6da588f3ff4/FLAG470c848a9
[2020-10-16 13:50:09,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82d084130/e8297ca9e8024d119425f6da588f3ff4
[2020-10-16 13:50:09,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 13:50:09,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 13:50:09,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 13:50:09,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 13:50:09,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 13:50:09,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:09" (1/1) ...
[2020-10-16 13:50:09,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b39db90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:09, skipping insertion in model container
[2020-10-16 13:50:09,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:50:09" (1/1) ...
[2020-10-16 13:50:09,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-16 13:50:09,520 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-16 13:50:09,989 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:50:10,002 INFO L203 MainTranslator]: Completed pre-run
[2020-10-16 13:50:10,051 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 13:50:10,148 INFO L208 MainTranslator]: Completed translation
[2020-10-16 13:50:10,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10 WrapperNode
[2020-10-16 13:50:10,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 13:50:10,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 13:50:10,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 13:50:10,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 13:50:10,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 13:50:10,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 13:50:10,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 13:50:10,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 13:50:10,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (1/1) ...
[2020-10-16 13:50:10,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 13:50:10,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 13:50:10,231 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 13:50:10,231 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-16 13:50:10,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (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 13:50:10,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 13:50:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 13:50:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 13:50:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 13:50:10,306 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 13:50:10,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 13:50:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 13:50:10,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 13:50:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-10-16 13:50:10,307 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-10-16 13:50:10,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 13:50:10,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 13:50:10,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 13:50:10,310 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 13:50:10,674 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 13:50:10,674 INFO L298 CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 13:50:10,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:10 BoogieIcfgContainer
[2020-10-16 13:50:10,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 13:50:10,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 13:50:10,679 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 13:50:10,682 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-16 13:50:10,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:50:09" (1/3) ...
[2020-10-16 13:50:10,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ca8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:10, skipping insertion in model container
[2020-10-16 13:50:10,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:50:10" (2/3) ...
[2020-10-16 13:50:10,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2ca8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:50:10, skipping insertion in model container
[2020-10-16 13:50:10,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:50:10" (3/3) ...
[2020-10-16 13:50:10,686 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt.i
[2020-10-16 13:50:10,699 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 13:50:10,699 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 13:50:10,707 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 13:50:10,708 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 13:50:10,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,739 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,739 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,740 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,740 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,741 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,741 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,742 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,742 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,742 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,743 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,743 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,743 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,744 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,744 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,748 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,749 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,755 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 13:50:10,763 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 13:50:10,776 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 13:50:10,794 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-16 13:50:10,794 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-16 13:50:10,794 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 13:50:10,794 INFO L380 AbstractCegarLoop]: Backedges is MCR
[2020-10-16 13:50:10,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 13:50:10,795 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-16 13:50:10,795 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 13:50:10,795 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 13:50:10,807 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 13:50:10,808 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 13:50:10,810 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 13:50:10,811 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-10-16 13:50:10,856 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-10-16 13:50:10,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 13:50:10,862 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-10-16 13:50:10,870 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260
[2020-10-16 13:50:12,082 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49
[2020-10-16 13:50:12,304 INFO L132 LiptonReduction]: Checked pairs total: 2520
[2020-10-16 13:50:12,304 INFO L134 LiptonReduction]: Total number of compositions: 58
[2020-10-16 13:50:12,312 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-10-16 13:50:12,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-10-16 13:50:12,357 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-10-16 13:50:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 13:50:12,387 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:12,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:12,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:12,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times
[2020-10-16 13:50:12,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:12,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537574381]
[2020-10-16 13:50:12,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:12,642 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 13:50:12,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537574381]
[2020-10-16 13:50:12,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:12,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:50:12,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [342683772]
[2020-10-16 13:50:12,647 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:12,651 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:12,668 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions.
[2020-10-16 13:50:12,668 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:12,673 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:12,674 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:50:12,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:12,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:50:12,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:12,693 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-10-16 13:50:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:12,768 INFO L93 Difference]: Finished difference Result 294 states and 849 transitions.
[2020-10-16 13:50:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:50:12,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 13:50:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:12,788 INFO L225 Difference]: With dead ends: 294
[2020-10-16 13:50:12,788 INFO L226 Difference]: Without dead ends: 230
[2020-10-16 13:50:12,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:12,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2020-10-16 13:50:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230.
[2020-10-16 13:50:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states.
[2020-10-16 13:50:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 641 transitions.
[2020-10-16 13:50:12,860 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 641 transitions. Word has length 8
[2020-10-16 13:50:12,861 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:12,861 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 641 transitions.
[2020-10-16 13:50:12,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:50:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 641 transitions.
[2020-10-16 13:50:12,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 13:50:12,863 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:12,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:12,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 13:50:12,864 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:12,865 INFO L82 PathProgramCache]: Analyzing trace with hash 113122264, now seen corresponding path program 1 times
[2020-10-16 13:50:12,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:12,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259868106]
[2020-10-16 13:50:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:12,965 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 13:50:12,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259868106]
[2020-10-16 13:50:12,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:12,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 13:50:12,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1404282050]
[2020-10-16 13:50:12,967 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:12,967 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:12,970 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 19 transitions.
[2020-10-16 13:50:12,970 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,014 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:50:13,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:50:13,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:13,017 INFO L87 Difference]: Start difference. First operand 230 states and 641 transitions. Second operand 3 states.
[2020-10-16 13:50:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,026 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions.
[2020-10-16 13:50:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:50:13,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-10-16 13:50:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,029 INFO L225 Difference]: With dead ends: 202
[2020-10-16 13:50:13,030 INFO L226 Difference]: Without dead ends: 202
[2020-10-16 13:50:13,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2020-10-16 13:50:13,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202.
[2020-10-16 13:50:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states.
[2020-10-16 13:50:13,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions.
[2020-10-16 13:50:13,052 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9
[2020-10-16 13:50:13,052 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,052 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions.
[2020-10-16 13:50:13,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:50:13,053 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions.
[2020-10-16 13:50:13,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 13:50:13,054 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 13:50:13,055 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,055 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times
[2020-10-16 13:50:13,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653396841]
[2020-10-16 13:50:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,105 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 13:50:13,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653396841]
[2020-10-16 13:50:13,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 13:50:13,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [360533490]
[2020-10-16 13:50:13,106 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,107 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,109 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions.
[2020-10-16 13:50:13,109 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,113 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 13:50:13,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 13:50:13,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:13,114 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states.
[2020-10-16 13:50:13,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,133 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions.
[2020-10-16 13:50:13,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 13:50:13,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-10-16 13:50:13,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,135 INFO L225 Difference]: With dead ends: 266
[2020-10-16 13:50:13,135 INFO L226 Difference]: Without dead ends: 140
[2020-10-16 13:50:13,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 13:50:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-10-16 13:50:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140.
[2020-10-16 13:50:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states.
[2020-10-16 13:50:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions.
[2020-10-16 13:50:13,149 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10
[2020-10-16 13:50:13,150 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,150 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions.
[2020-10-16 13:50:13,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 13:50:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions.
[2020-10-16 13:50:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 13:50:13,151 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 13:50:13,152 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times
[2020-10-16 13:50:13,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629141921]
[2020-10-16 13:50:13,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,271 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 13:50:13,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629141921]
[2020-10-16 13:50:13,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 13:50:13,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [362830859]
[2020-10-16 13:50:13,273 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,274 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,276 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions.
[2020-10-16 13:50:13,276 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,282 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:50:13,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:50:13,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:50:13,284 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states.
[2020-10-16 13:50:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,319 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions.
[2020-10-16 13:50:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 13:50:13,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11
[2020-10-16 13:50:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,321 INFO L225 Difference]: With dead ends: 165
[2020-10-16 13:50:13,321 INFO L226 Difference]: Without dead ends: 113
[2020-10-16 13:50:13,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 13:50:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2020-10-16 13:50:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113.
[2020-10-16 13:50:13,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states.
[2020-10-16 13:50:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions.
[2020-10-16 13:50:13,331 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11
[2020-10-16 13:50:13,331 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,331 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions.
[2020-10-16 13:50:13,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:50:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions.
[2020-10-16 13:50:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 13:50:13,332 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 13:50:13,333 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,333 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times
[2020-10-16 13:50:13,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022986584]
[2020-10-16 13:50:13,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,420 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 13:50:13,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022986584]
[2020-10-16 13:50:13,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:50:13,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [898079208]
[2020-10-16 13:50:13,423 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,425 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,428 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions.
[2020-10-16 13:50:13,430 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,443 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2994#(<= ~__unbuffered_cnt~0 0)]
[2020-10-16 13:50:13,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 13:50:13,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 13:50:13,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 13:50:13,444 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 6 states.
[2020-10-16 13:50:13,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,512 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions.
[2020-10-16 13:50:13,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-10-16 13:50:13,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2020-10-16 13:50:13,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,513 INFO L225 Difference]: With dead ends: 111
[2020-10-16 13:50:13,513 INFO L226 Difference]: Without dead ends: 80
[2020-10-16 13:50:13,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-10-16 13:50:13,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states.
[2020-10-16 13:50:13,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80.
[2020-10-16 13:50:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states.
[2020-10-16 13:50:13,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions.
[2020-10-16 13:50:13,520 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12
[2020-10-16 13:50:13,521 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,521 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions.
[2020-10-16 13:50:13,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 13:50:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions.
[2020-10-16 13:50:13,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 13:50:13,522 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 13:50:13,523 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times
[2020-10-16 13:50:13,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987001729]
[2020-10-16 13:50:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,584 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 13:50:13,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987001729]
[2020-10-16 13:50:13,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 13:50:13,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1217556823]
[2020-10-16 13:50:13,586 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,587 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,590 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 36 transitions.
[2020-10-16 13:50:13,591 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,603 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3274#(<= ~__unbuffered_cnt~0 0)]
[2020-10-16 13:50:13,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-16 13:50:13,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-16 13:50:13,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-10-16 13:50:13,605 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 7 states.
[2020-10-16 13:50:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,659 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions.
[2020-10-16 13:50:13,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-10-16 13:50:13,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14
[2020-10-16 13:50:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,660 INFO L225 Difference]: With dead ends: 75
[2020-10-16 13:50:13,661 INFO L226 Difference]: Without dead ends: 66
[2020-10-16 13:50:13,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56
[2020-10-16 13:50:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-10-16 13:50:13,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2020-10-16 13:50:13,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-10-16 13:50:13,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions.
[2020-10-16 13:50:13,665 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14
[2020-10-16 13:50:13,666 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,666 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions.
[2020-10-16 13:50:13,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-16 13:50:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions.
[2020-10-16 13:50:13,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:50:13,667 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 13:50:13,667 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,668 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times
[2020-10-16 13:50:13,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346153300]
[2020-10-16 13:50:13,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,706 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 13:50:13,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346153300]
[2020-10-16 13:50:13,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:50:13,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1675864117]
[2020-10-16 13:50:13,708 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,710 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,716 INFO L258 McrAutomatonBuilder]: Finished intersection with 40 states and 57 transitions.
[2020-10-16 13:50:13,717 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,734 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:50:13,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:50:13,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:50:13,735 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states.
[2020-10-16 13:50:13,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,756 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions.
[2020-10-16 13:50:13,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 13:50:13,757 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:50:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,758 INFO L225 Difference]: With dead ends: 85
[2020-10-16 13:50:13,758 INFO L226 Difference]: Without dead ends: 48
[2020-10-16 13:50:13,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 13:50:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-10-16 13:50:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2020-10-16 13:50:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-10-16 13:50:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions.
[2020-10-16 13:50:13,761 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17
[2020-10-16 13:50:13,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,762 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions.
[2020-10-16 13:50:13,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:50:13,762 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions.
[2020-10-16 13:50:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:50:13,763 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 13:50:13,763 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times
[2020-10-16 13:50:13,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033531929]
[2020-10-16 13:50:13,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,801 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 13:50:13,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033531929]
[2020-10-16 13:50:13,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:50:13,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [49836982]
[2020-10-16 13:50:13,803 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,805 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,811 INFO L258 McrAutomatonBuilder]: Finished intersection with 38 states and 57 transitions.
[2020-10-16 13:50:13,811 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,826 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:50:13,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:50:13,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:50:13,828 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states.
[2020-10-16 13:50:13,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,846 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions.
[2020-10-16 13:50:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-10-16 13:50:13,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:50:13,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,847 INFO L225 Difference]: With dead ends: 73
[2020-10-16 13:50:13,847 INFO L226 Difference]: Without dead ends: 42
[2020-10-16 13:50:13,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 13:50:13,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-10-16 13:50:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2020-10-16 13:50:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states.
[2020-10-16 13:50:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions.
[2020-10-16 13:50:13,850 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17
[2020-10-16 13:50:13,851 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,851 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions.
[2020-10-16 13:50:13,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:50:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions.
[2020-10-16 13:50:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 13:50:13,852 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 13:50:13,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 13:50:13,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-16 13:50:13,852 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 13:50:13,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 13:50:13,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times
[2020-10-16 13:50:13,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 13:50:13,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478939632]
[2020-10-16 13:50:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 13:50:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 13:50:13,888 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 13:50:13,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478939632]
[2020-10-16 13:50:13,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 13:50:13,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 13:50:13,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [261712359]
[2020-10-16 13:50:13,890 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class.
[2020-10-16 13:50:13,892 INFO L255 McrAutomatonBuilder]: Started intersection.
[2020-10-16 13:50:13,898 INFO L258 McrAutomatonBuilder]: Finished intersection with 30 states and 39 transitions.
[2020-10-16 13:50:13,898 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider
[2020-10-16 13:50:13,923 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: []
[2020-10-16 13:50:13,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 13:50:13,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 13:50:13,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 13:50:13,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 13:50:13,924 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states.
[2020-10-16 13:50:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 13:50:13,934 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions.
[2020-10-16 13:50:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 13:50:13,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2020-10-16 13:50:13,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 13:50:13,935 INFO L225 Difference]: With dead ends: 41
[2020-10-16 13:50:13,935 INFO L226 Difference]: Without dead ends: 0
[2020-10-16 13:50:13,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 13:50:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 13:50:13,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 13:50:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 13:50:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 13:50:13,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-10-16 13:50:13,936 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 13:50:13,937 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 13:50:13,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 13:50:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 13:50:13,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 13:50:13,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-16 13:50:13,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:50:13 BasicIcfg
[2020-10-16 13:50:13,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 13:50:13,943 INFO L168 Benchmark]: Toolchain (without parser) took 4500.09 ms. Allocated memory was 141.0 MB in the beginning and 246.9 MB in the end (delta: 105.9 MB). Free memory was 102.3 MB in the beginning and 130.4 MB in the end (delta: -28.2 MB). Peak memory consumption was 77.8 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,944 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.91 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 160.9 MB in the end (delta: -58.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,947 INFO L168 Benchmark]: Boogie Preprocessor took 28.47 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,948 INFO L168 Benchmark]: RCFGBuilder took 446.98 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 134.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,949 INFO L168 Benchmark]: TraceAbstraction took 3262.81 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.4 MB in the beginning and 132.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB.
[2020-10-16 13:50:13,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 703.91 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.1 MB in the beginning and 160.9 MB in the end (delta: -58.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 28.47 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 156.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 446.98 ms. Allocated memory is still 203.9 MB. Free memory was 156.9 MB in the beginning and 134.4 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3262.81 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 134.4 MB in the beginning and 132.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
634 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 172 SDtfs, 127 SDslu, 210 SDs, 0 SdLazy, 123 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 0.4s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3412 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...