/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/safe000_pso.oepc.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b09bf87
[2020-10-16 12:07:04,440 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-16 12:07:04,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 12:07:04,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 12:07:04,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 12:07:04,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 12:07:04,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-16 12:07:04,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-16 12:07:04,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-16 12:07:04,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-16 12:07:04,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-16 12:07:04,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-16 12:07:04,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-16 12:07:04,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-16 12:07:04,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-16 12:07:04,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 12:07:04,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 12:07:04,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 12:07:04,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 12:07:04,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 12:07:04,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 12:07:04,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 12:07:04,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 12:07:04,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 12:07:04,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-16 12:07:04,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-16 12:07:04,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 12:07:04,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-16 12:07:04,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-16 12:07:04,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-16 12:07:04,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-16 12:07:04,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-16 12:07:04,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-10-16 12:07:04,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-16 12:07:04,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-16 12:07:04,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2020-10-16 12:07:04,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 12:07:04,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 12:07:04,509 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 12:07:04,532 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-16 12:07:04,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 12:07:04,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 12:07:04,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-16 12:07:04,534 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-16 12:07:04,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 12:07:04,534 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-16 12:07:04,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-16 12:07:04,535 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-16 12:07:04,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-16 12:07:04,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 12:07:04,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 12:07:04,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 12:07:04,536 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-16 12:07:04,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-16 12:07:04,536 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-16 12:07:04,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-16 12:07:04,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 12:07:04,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-16 12:07:04,537 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-16 12:07:04,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-16 12:07:04,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 12:07:04,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 12:07:04,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 12:07:04,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 12:07:04,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-16 12:07:04,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 12:07:04,538 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 12:07:04,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 12:07:04,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 12:07:04,905 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 12:07:04,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 12:07:04,911 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-16 12:07:04,912 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-16 12:07:04,912 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i
[2020-10-16 12:07:04,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/899848dc1/6b0ad6461d98496586e2203683a01c94/FLAG5d6c991d7
[2020-10-16 12:07:05,520 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-16 12:07:05,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i
[2020-10-16 12:07:05,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/899848dc1/6b0ad6461d98496586e2203683a01c94/FLAG5d6c991d7
[2020-10-16 12:07:05,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/899848dc1/6b0ad6461d98496586e2203683a01c94
[2020-10-16 12:07:05,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 12:07:05,819 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 12:07:05,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 12:07:05,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 12:07:05,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 12:07:05,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:05" (1/1) ...
[2020-10-16 12:07:05,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1c832f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:05, skipping insertion in model container
[2020-10-16 12:07:05,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:07:05" (1/1) ...
[2020-10-16 12:07:05,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-16 12:07:05,900 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-16 12:07:06,336 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:07:06,348 INFO L203 MainTranslator]: Completed pre-run
[2020-10-16 12:07:06,426 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:07:06,503 INFO L208 MainTranslator]: Completed translation
[2020-10-16 12:07:06,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06 WrapperNode
[2020-10-16 12:07:06,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 12:07:06,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 12:07:06,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 12:07:06,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 12:07:06,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 12:07:06,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 12:07:06,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 12:07:06,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 12:07:06,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (1/1) ...
[2020-10-16 12:07:06,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 12:07:06,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 12:07:06,585 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 12:07:06,585 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-16 12:07:06,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (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 12:07:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 12:07:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 12:07:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 12:07:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 12:07:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 12:07:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 12:07:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 12:07:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 12:07:06,660 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-10-16 12:07:06,660 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-10-16 12:07:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 12:07:06,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 12:07:06,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 12:07:06,663 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 12:07:07,069 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 12:07:07,069 INFO L298 CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 12:07:07,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:07:07 BoogieIcfgContainer
[2020-10-16 12:07:07,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 12:07:07,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 12:07:07,073 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 12:07:07,077 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-16 12:07:07,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:07:05" (1/3) ...
[2020-10-16 12:07:07,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635eca15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:07:07, skipping insertion in model container
[2020-10-16 12:07:07,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:07:06" (2/3) ...
[2020-10-16 12:07:07,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635eca15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:07:07, skipping insertion in model container
[2020-10-16 12:07:07,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:07:07" (3/3) ...
[2020-10-16 12:07:07,081 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i
[2020-10-16 12:07:07,094 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 12:07:07,095 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 12:07:07,103 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 12:07:07,104 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 12:07:07,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,135 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,149 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,150 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:07:07,155 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 12:07:07,167 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 12:07:07,187 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-16 12:07:07,187 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-16 12:07:07,187 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 12:07:07,188 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 12:07:07,188 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 12:07:07,188 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-16 12:07:07,188 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 12:07:07,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 12:07:07,200 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 12:07:07,201 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 12:07:07,204 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow
[2020-10-16 12:07:07,206 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow
[2020-10-16 12:07:07,250 INFO L129 PetriNetUnfolder]: 2/67 cut-off events.
[2020-10-16 12:07:07,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 12:07:07,258 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 46 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 12:07:07,260 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260
[2020-10-16 12:07:08,663 INFO L132 LiptonReduction]: Checked pairs total: 2810
[2020-10-16 12:07:08,664 INFO L134 LiptonReduction]: Total number of compositions: 60
[2020-10-16 12:07:08,670 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow
[2020-10-16 12:07:08,697 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-10-16 12:07:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-10-16 12:07:08,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 12:07:08,708 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:07:08,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:07:08,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:07:08,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:07:08,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times
[2020-10-16 12:07:08,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:07:08,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924912297]
[2020-10-16 12:07:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:07:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:07:08,947 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 12:07:08,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924912297]
[2020-10-16 12:07:08,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:07:08,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 12:07:08,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435790525]
[2020-10-16 12:07:08,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:07:08,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:07:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:07:08,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:07:08,973 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-10-16 12:07:09,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:07:09,022 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions.
[2020-10-16 12:07:09,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 12:07:09,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 12:07:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:07:09,040 INFO L225 Difference]: With dead ends: 282
[2020-10-16 12:07:09,041 INFO L226 Difference]: Without dead ends: 218
[2020-10-16 12:07:09,042 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 12:07:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2020-10-16 12:07:09,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218.
[2020-10-16 12:07:09,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states.
[2020-10-16 12:07:09,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions.
[2020-10-16 12:07:09,108 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8
[2020-10-16 12:07:09,109 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:07:09,109 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions.
[2020-10-16 12:07:09,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:07:09,110 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions.
[2020-10-16 12:07:09,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 12:07:09,111 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:07:09,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:07:09,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 12:07:09,112 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:07:09,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:07:09,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times
[2020-10-16 12:07:09,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:07:09,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583028611]
[2020-10-16 12:07:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:07:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:07:09,223 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 12:07:09,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583028611]
[2020-10-16 12:07:09,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:07:09,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:07:09,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519261496]
[2020-10-16 12:07:09,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:07:09,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:07:09,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:07:09,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:07:09,227 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states.
[2020-10-16 12:07:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:07:09,264 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions.
[2020-10-16 12:07:09,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 12:07:09,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9
[2020-10-16 12:07:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:07:09,267 INFO L225 Difference]: With dead ends: 242
[2020-10-16 12:07:09,267 INFO L226 Difference]: Without dead ends: 146
[2020-10-16 12:07:09,268 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 12:07:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-10-16 12:07:09,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146.
[2020-10-16 12:07:09,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states.
[2020-10-16 12:07:09,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions.
[2020-10-16 12:07:09,283 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9
[2020-10-16 12:07:09,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:07:09,284 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions.
[2020-10-16 12:07:09,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:07:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions.
[2020-10-16 12:07:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 12:07:09,285 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:07:09,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:07:09,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 12:07:09,286 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:07:09,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:07:09,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times
[2020-10-16 12:07:09,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:07:09,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028150003]
[2020-10-16 12:07:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:07:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:07:09,333 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 12:07:09,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028150003]
[2020-10-16 12:07:09,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:07:09,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:07:09,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28701167]
[2020-10-16 12:07:09,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:07:09,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:07:09,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:07:09,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:07:09,335 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states.
[2020-10-16 12:07:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:07:09,348 INFO L93 Difference]: Finished difference Result 138 states and 336 transitions.
[2020-10-16 12:07:09,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-10-16 12:07:09,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2020-10-16 12:07:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:07:09,351 INFO L225 Difference]: With dead ends: 138
[2020-10-16 12:07:09,351 INFO L226 Difference]: Without dead ends: 138
[2020-10-16 12:07:09,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:07:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2020-10-16 12:07:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138.
[2020-10-16 12:07:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states.
[2020-10-16 12:07:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 336 transitions.
[2020-10-16 12:07:09,363 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 336 transitions. Word has length 11
[2020-10-16 12:07:09,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:07:09,364 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 336 transitions.
[2020-10-16 12:07:09,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:07:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 336 transitions.
[2020-10-16 12:07:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:07:09,366 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:07:09,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:07:09,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 12:07:09,366 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:07:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:07:09,367 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 1 times
[2020-10-16 12:07:09,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:07:09,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391095208]
[2020-10-16 12:07:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:07:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:07:09,464 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 12:07:09,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391095208]
[2020-10-16 12:07:09,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:07:09,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:07:09,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573074900]
[2020-10-16 12:07:09,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:07:09,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:07:09,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:07:09,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:07:09,467 INFO L87 Difference]: Start difference. First operand 138 states and 336 transitions. Second operand 4 states.
[2020-10-16 12:07:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:07:09,486 INFO L93 Difference]: Finished difference Result 178 states and 418 transitions.
[2020-10-16 12:07:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 12:07:09,486 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-10-16 12:07:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:07:09,487 INFO L225 Difference]: With dead ends: 178
[2020-10-16 12:07:09,487 INFO L226 Difference]: Without dead ends: 82
[2020-10-16 12:07:09,488 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 12:07:09,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2020-10-16 12:07:09,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2020-10-16 12:07:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states.
[2020-10-16 12:07:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions.
[2020-10-16 12:07:09,495 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 12
[2020-10-16 12:07:09,495 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:07:09,495 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions.
[2020-10-16 12:07:09,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:07:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions.
[2020-10-16 12:07:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 12:07:09,497 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-16 12:07:09,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:07:09,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 12:07:09,497 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:07:09,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:07:09,498 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times
[2020-10-16 12:07:09,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:07:09,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471553084]
[2020-10-16 12:07:09,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:07:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:07:09,542 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 12:07:09,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471553084]
[2020-10-16 12:07:09,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:07:09,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:07:09,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828871732]
[2020-10-16 12:07:09,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:07:09,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:07:09,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:07:09,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:07:09,545 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 4 states.
[2020-10-16 12:07:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:07:09,560 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions.
[2020-10-16 12:07:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-10-16 12:07:09,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14
[2020-10-16 12:07:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:07:09,561 INFO L225 Difference]: With dead ends: 74
[2020-10-16 12:07:09,561 INFO L226 Difference]: Without dead ends: 0
[2020-10-16 12:07:09,562 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 12:07:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 12:07:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 12:07:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 12:07:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 12:07:09,563 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2020-10-16 12:07:09,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:07:09,563 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 12:07:09,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:07:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 12:07:09,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 12:07:09,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 12:07:09,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:07:09 BasicIcfg
[2020-10-16 12:07:09,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 12:07:09,571 INFO L168 Benchmark]: Toolchain (without parser) took 3750.26 ms. Allocated memory was 142.1 MB in the beginning and 243.8 MB in the end (delta: 101.7 MB). Free memory was 103.8 MB in the beginning and 105.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 100.4 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,571 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.56 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 103.6 MB in the beginning and 160.2 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,574 INFO L168 Benchmark]: Boogie Preprocessor took 29.34 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,575 INFO L168 Benchmark]: RCFGBuilder took 487.04 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 134.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,576 INFO L168 Benchmark]: TraceAbstraction took 2494.74 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 133.6 MB in the beginning and 105.1 MB in the end (delta: 28.5 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB.
[2020-10-16 12:07:09,580 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.44 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 683.56 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 103.6 MB in the beginning and 160.2 MB in the end (delta: -56.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 203.4 MB. Free memory was 160.2 MB in the beginning and 158.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 29.34 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 487.04 ms. Allocated memory is still 203.4 MB. Free memory was 156.4 MB in the beginning and 134.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2494.74 ms. Allocated memory was 203.4 MB in the beginning and 243.8 MB in the end (delta: 40.4 MB). Free memory was 133.6 MB in the beginning and 105.1 MB in the end (delta: 28.5 MB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
660 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 41 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 84 SDtfs, 73 SDslu, 67 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 1369 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...