/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/safe036_pso.opt.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-b09bf87
[2020-10-16 12:12:16,591 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-16 12:12:16,593 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2020-10-16 12:12:16,615 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 12:12:16,616 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 12:12:16,618 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-10-16 12:12:16,627 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 12:12:16,628 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 12:12:16,630 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 12:12:16,631 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 12:12:16,633 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 12:12:16,633 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 12:12:16,635 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 12:12:16,635 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 12:12:16,638 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-10-16 12:12:16,646 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 12:12:16,647 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 12:12:16,678 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-16 12:12:16,679 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 12:12:16,682 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 12:12:16,682 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-16 12:12:16,682 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-16 12:12:16,682 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 12:12:16,683 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-16 12:12:16,683 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-16 12:12:16,683 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-16 12:12:16,683 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-16 12:12:16,683 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-16 12:12:16,684 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-16 12:12:16,685 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 12:12:16,685 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-16 12:12:16,687 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-16 12:12:16,687 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-16 12:12:16,687 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 12:12:16,687 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 12:12:16,687 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 12:12:16,687 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 12:12:16,688 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-16 12:12:16,688 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 12:12:16,688 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 12:12:16,688 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 12:12:16,972 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 12:12:16,984 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 12:12:16,987 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 12:12:16,989 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-16 12:12:16,989 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-16 12:12:16,990 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i
[2020-10-16 12:12:17,050 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38e2963b/64ca3ecc36a0457291c6546a3ed09385/FLAG11e869129
[2020-10-16 12:12:17,577 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-16 12:12:17,577 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i
[2020-10-16 12:12:17,589 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38e2963b/64ca3ecc36a0457291c6546a3ed09385/FLAG11e869129
[2020-10-16 12:12:17,872 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a38e2963b/64ca3ecc36a0457291c6546a3ed09385
[2020-10-16 12:12:17,880 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 12:12:17,881 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 12:12:17,882 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 12:12:17,882 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 12:12:17,886 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 12:12:17,887 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:17" (1/1) ...
[2020-10-16 12:12:17,891 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a922c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:17, skipping insertion in model container
[2020-10-16 12:12:17,891 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:12:17" (1/1) ...
[2020-10-16 12:12:17,898 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-16 12:12:17,949 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-16 12:12:18,439 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:12:18,454 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-16 12:12:18,501 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:12:18,574 INFO  L208         MainTranslator]: Completed translation
[2020-10-16 12:12:18,574 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18 WrapperNode
[2020-10-16 12:12:18,574 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 12:12:18,575 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 12:12:18,575 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 12:12:18,576 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 12:12:18,584 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,600 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,622 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 12:12:18,622 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 12:12:18,622 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 12:12:18,622 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 12:12:18,631 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,632 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,635 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,635 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,641 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,643 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,645 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (1/1) ...
[2020-10-16 12:12:18,648 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 12:12:18,648 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 12:12:18,648 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 12:12:18,648 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-16 12:12:18,649 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (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 12:12:18,727 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 12:12:18,727 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 12:12:18,728 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 12:12:18,728 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 12:12:18,728 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 12:12:18,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 12:12:18,729 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 12:12:18,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 12:12:18,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 12:12:18,730 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 12:12:18,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 12:12:18,732 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 12:12:19,028 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 12:12:19,029 INFO  L298             CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 12:12:19,031 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:19 BoogieIcfgContainer
[2020-10-16 12:12:19,031 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 12:12:19,032 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 12:12:19,033 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 12:12:19,036 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-16 12:12:19,036 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:12:17" (1/3) ...
[2020-10-16 12:12:19,037 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445677ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:19, skipping insertion in model container
[2020-10-16 12:12:19,037 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:12:18" (2/3) ...
[2020-10-16 12:12:19,038 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445677ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:12:19, skipping insertion in model container
[2020-10-16 12:12:19,038 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:12:19" (3/3) ...
[2020-10-16 12:12:19,039 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i
[2020-10-16 12:12:19,051 WARN  L153   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 12:12:19,051 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 12:12:19,058 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 12:12:19,060 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 12:12:19,087 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,088 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,088 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,089 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,089 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,089 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,090 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,090 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,091 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,091 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,091 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,092 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,095 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,096 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,096 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,096 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,102 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,102 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,103 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,103 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:12:19,105 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 12:12:19,119 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2020-10-16 12:12:19,137 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 12:12:19,137 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 12:12:19,137 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 12:12:19,137 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 12:12:19,138 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 12:12:19,138 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 12:12:19,138 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 12:12:19,138 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 12:12:19,149 INFO  L137   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 12:12:19,150 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow
[2020-10-16 12:12:19,152 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 56 transitions, 122 flow
[2020-10-16 12:12:19,153 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow
[2020-10-16 12:12:19,189 INFO  L129       PetriNetUnfolder]: 2/54 cut-off events.
[2020-10-16 12:12:19,190 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 12:12:19,194 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. 
[2020-10-16 12:12:19,197 INFO  L117        LiptonReduction]: Number of co-enabled transitions 672
[2020-10-16 12:12:20,310 INFO  L132        LiptonReduction]: Checked pairs total: 1338
[2020-10-16 12:12:20,310 INFO  L134        LiptonReduction]: Total number of compositions: 51
[2020-10-16 12:12:20,317 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow
[2020-10-16 12:12:20,331 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states.
[2020-10-16 12:12:20,334 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states.
[2020-10-16 12:12:20,340 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-10-16 12:12:20,340 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:12:20,341 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2020-10-16 12:12:20,342 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:12:20,348 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:12:20,349 INFO  L82        PathProgramCache]: Analyzing trace with hash 1873752150, now seen corresponding path program 1 times
[2020-10-16 12:12:20,360 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:12:20,361 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219434911]
[2020-10-16 12:12:20,376 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:12:20,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:12:20,601 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 12:12:20,601 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219434911]
[2020-10-16 12:12:20,602 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:12:20,603 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:12:20,603 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498435081]
[2020-10-16 12:12:20,608 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:12:20,608 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:12:20,622 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:12:20,623 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:12:20,625 INFO  L87              Difference]: Start difference. First operand 74 states. Second operand 4 states.
[2020-10-16 12:12:20,684 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:12:20,685 INFO  L93              Difference]: Finished difference Result 63 states and 112 transitions.
[2020-10-16 12:12:20,685 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-16 12:12:20,687 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 6
[2020-10-16 12:12:20,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:12:20,696 INFO  L225             Difference]: With dead ends: 63
[2020-10-16 12:12:20,696 INFO  L226             Difference]: Without dead ends: 40
[2020-10-16 12:12:20,698 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 12:12:20,716 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-10-16 12:12:20,730 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-10-16 12:12:20,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-10-16 12:12:20,733 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions.
[2020-10-16 12:12:20,734 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 6
[2020-10-16 12:12:20,734 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:12:20,734 INFO  L481      AbstractCegarLoop]: Abstraction has 40 states and 66 transitions.
[2020-10-16 12:12:20,735 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:12:20,735 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions.
[2020-10-16 12:12:20,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 12:12:20,736 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:12:20,736 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:12:20,736 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 12:12:20,736 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:12:20,737 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:12:20,737 INFO  L82        PathProgramCache]: Analyzing trace with hash -771561330, now seen corresponding path program 1 times
[2020-10-16 12:12:20,737 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:12:20,737 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218012851]
[2020-10-16 12:12:20,738 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:12:20,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:12:20,799 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 12:12:20,799 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218012851]
[2020-10-16 12:12:20,800 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:12:20,800 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:12:20,800 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689262718]
[2020-10-16 12:12:20,802 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:12:20,802 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:12:20,802 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:12:20,802 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:12:20,803 INFO  L87              Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states.
[2020-10-16 12:12:20,859 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:12:20,860 INFO  L93              Difference]: Finished difference Result 35 states and 54 transitions.
[2020-10-16 12:12:20,860 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-16 12:12:20,861 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 9
[2020-10-16 12:12:20,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:12:20,861 INFO  L225             Difference]: With dead ends: 35
[2020-10-16 12:12:20,862 INFO  L226             Difference]: Without dead ends: 28
[2020-10-16 12:12:20,863 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 12:12:20,863 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-10-16 12:12:20,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2020-10-16 12:12:20,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2020-10-16 12:12:20,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions.
[2020-10-16 12:12:20,867 INFO  L78                 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9
[2020-10-16 12:12:20,868 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:12:20,868 INFO  L481      AbstractCegarLoop]: Abstraction has 28 states and 42 transitions.
[2020-10-16 12:12:20,868 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:12:20,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions.
[2020-10-16 12:12:20,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:12:20,869 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:12:20,869 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:12:20,869 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 12:12:20,869 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:12:20,870 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:12:20,870 INFO  L82        PathProgramCache]: Analyzing trace with hash 1059449318, now seen corresponding path program 1 times
[2020-10-16 12:12:20,870 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:12:20,870 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536609534]
[2020-10-16 12:12:20,871 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:12:20,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:12:20,917 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 12:12:20,918 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536609534]
[2020-10-16 12:12:20,918 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:12:20,918 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:12:20,918 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807594252]
[2020-10-16 12:12:20,919 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:12:20,919 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:12:20,919 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:12:20,919 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:12:20,920 INFO  L87              Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states.
[2020-10-16 12:12:20,934 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:12:20,934 INFO  L93              Difference]: Finished difference Result 35 states and 50 transitions.
[2020-10-16 12:12:20,935 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 12:12:20,935 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-10-16 12:12:20,935 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:12:20,936 INFO  L225             Difference]: With dead ends: 35
[2020-10-16 12:12:20,936 INFO  L226             Difference]: Without dead ends: 22
[2020-10-16 12:12:20,936 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:12:20,937 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2020-10-16 12:12:20,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2020-10-16 12:12:20,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-10-16 12:12:20,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions.
[2020-10-16 12:12:20,940 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 12
[2020-10-16 12:12:20,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:12:20,940 INFO  L481      AbstractCegarLoop]: Abstraction has 22 states and 30 transitions.
[2020-10-16 12:12:20,940 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:12:20,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions.
[2020-10-16 12:12:20,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:12:20,941 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:12:20,941 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:12:20,941 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 12:12:20,942 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:12:20,942 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:12:20,942 INFO  L82        PathProgramCache]: Analyzing trace with hash 1252547174, now seen corresponding path program 2 times
[2020-10-16 12:12:20,942 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:12:20,943 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598176410]
[2020-10-16 12:12:20,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:12:20,965 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:12:20,997 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 12:12:20,998 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598176410]
[2020-10-16 12:12:20,998 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:12:20,998 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:12:20,999 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478841347]
[2020-10-16 12:12:20,999 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:12:20,999 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:12:20,999 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:12:21,000 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:12:21,000 INFO  L87              Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states.
[2020-10-16 12:12:21,011 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:12:21,011 INFO  L93              Difference]: Finished difference Result 21 states and 29 transitions.
[2020-10-16 12:12:21,011 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 12:12:21,011 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-10-16 12:12:21,012 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:12:21,012 INFO  L225             Difference]: With dead ends: 21
[2020-10-16 12:12:21,012 INFO  L226             Difference]: Without dead ends: 0
[2020-10-16 12:12:21,014 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:12:21,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 12:12:21,014 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 12:12:21,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 12:12:21,015 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 12:12:21,015 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2020-10-16 12:12:21,015 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:12:21,015 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 12:12:21,015 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:12:21,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 12:12:21,016 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 12:12:21,016 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 12:12:21,019 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:12:21 BasicIcfg
[2020-10-16 12:12:21,019 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 12:12:21,022 INFO  L168              Benchmark]: Toolchain (without parser) took 3139.92 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.2 MB in the beginning and 168.8 MB in the end (delta: -66.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,023 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,024 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 692.51 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 158.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,025 INFO  L168              Benchmark]: Boogie Procedure Inliner took 46.48 ms. Allocated memory is still 203.4 MB. Free memory was 158.8 MB in the beginning and 156.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,026 INFO  L168              Benchmark]: Boogie Preprocessor took 25.81 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,026 INFO  L168              Benchmark]: RCFGBuilder took 382.97 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 135.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,027 INFO  L168              Benchmark]: TraceAbstraction took 1987.21 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 168.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB.
[2020-10-16 12:12:21,032 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 692.51 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 158.8 MB in the end (delta: -56.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 46.48 ms. Allocated memory is still 203.4 MB. Free memory was 158.8 MB in the beginning and 156.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 25.81 ms. Allocated memory is still 203.4 MB. Free memory was 156.7 MB in the beginning and 154.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 382.97 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 135.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1987.21 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 134.4 MB in the beginning and 168.8 MB in the end (delta: -34.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    363 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 22 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 61 PlacesBefore, 22 PlacesAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 1338 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 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 56 SDtfs, 47 SDslu, 68 SDs, 0 SdLazy, 43 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...