./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl/time-trans.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 8c2bbc92
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl/time-trans.wvr.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ddbf901ae0510c794cb6d2b6976167453f58e95c
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-8c2bbc9
[2021-10-04 18:39:30,526 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-04 18:39:30,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-04 18:39:30,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-04 18:39:30,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-04 18:39:30,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-04 18:39:30,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-04 18:39:30,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-04 18:39:30,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-04 18:39:30,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-04 18:39:30,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-04 18:39:30,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-04 18:39:30,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-04 18:39:30,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-04 18:39:30,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-04 18:39:30,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-04 18:39:30,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-04 18:39:30,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-04 18:39:30,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-04 18:39:30,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-04 18:39:30,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-04 18:39:30,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-04 18:39:30,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-04 18:39:30,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-04 18:39:30,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-04 18:39:30,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-04 18:39:30,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-04 18:39:30,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-04 18:39:30,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-04 18:39:30,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-04 18:39:30,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-04 18:39:30,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-04 18:39:30,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-04 18:39:30,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-04 18:39:30,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-04 18:39:30,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-04 18:39:30,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-04 18:39:30,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-04 18:39:30,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-04 18:39:30,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-04 18:39:30,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-04 18:39:30,673 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-04 18:39:30,721 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-04 18:39:30,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-04 18:39:30,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-04 18:39:30,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-04 18:39:30,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-04 18:39:30,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-04 18:39:30,726 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-04 18:39:30,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-04 18:39:30,727 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-04 18:39:30,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-04 18:39:30,728 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-04 18:39:30,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-04 18:39:30,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-04 18:39:30,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-04 18:39:30,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-04 18:39:30,730 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-04 18:39:30,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-04 18:39:30,730 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-04 18:39:30,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-04 18:39:30,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-04 18:39:30,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-04 18:39:30,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-04 18:39:30,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-04 18:39:30,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-04 18:39:30,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-04 18:39:30,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-04 18:39:30,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-04 18:39:30,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-04 18:39:30,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-04 18:39:30,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-04 18:39:30,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddbf901ae0510c794cb6d2b6976167453f58e95c
[2021-10-04 18:39:31,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-04 18:39:31,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-04 18:39:31,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-04 18:39:31,157 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-04 18:39:31,158 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-04 18:39:31,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl/time-trans.wvr.c
[2021-10-04 18:39:31,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec162d80d/706566f546d241b1899833f26df51c3e/FLAGdd65d9f84
[2021-10-04 18:39:31,869 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-04 18:39:31,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-trans.wvr.c
[2021-10-04 18:39:31,870 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available.
[2021-10-04 18:39:31,871 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available.
[2021-10-04 18:39:31,881 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec162d80d/706566f546d241b1899833f26df51c3e/FLAGdd65d9f84
[2021-10-04 18:39:32,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ec162d80d/706566f546d241b1899833f26df51c3e
[2021-10-04 18:39:32,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-04 18:39:32,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-04 18:39:32,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-04 18:39:32,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-04 18:39:32,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-04 18:39:32,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f22273f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32, skipping insertion in model container
[2021-10-04 18:39:32,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-04 18:39:32,251 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-04 18:39:32,400 WARN L612 FunctionHandler]: implicit declaration of function assert
[2021-10-04 18:39:32,448 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-trans.wvr.c[1747,1760]
[2021-10-04 18:39:32,453 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-04 18:39:32,464 INFO L203 MainTranslator]: Completed pre-run
[2021-10-04 18:39:32,478 WARN L612 FunctionHandler]: implicit declaration of function assert
[2021-10-04 18:39:32,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl/time-trans.wvr.c[1747,1760]
[2021-10-04 18:39:32,520 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-04 18:39:32,539 INFO L208 MainTranslator]: Completed translation
[2021-10-04 18:39:32,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32 WrapperNode
[2021-10-04 18:39:32,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-04 18:39:32,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-04 18:39:32,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-04 18:39:32,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-04 18:39:32,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-04 18:39:32,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-04 18:39:32,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-04 18:39:32,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-04 18:39:32,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-04 18:39:32,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-04 18:39:32,626 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-04 18:39:32,626 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-04 18:39:32,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (1/1) ...
[2021-10-04 18:39:32,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-04 18:39:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
[2021-10-04 18:39:32,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-04 18:39:32,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-04 18:39:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-10-04 18:39:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-10-04 18:39:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-10-04 18:39:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-10-04 18:39:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2021-10-04 18:39:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2021-10-04 18:39:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-04 18:39:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-10-04 18:39:32,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-10-04 18:39:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-10-04 18:39:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-04 18:39:32,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-04 18:39:32,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-10-04 18:39:32,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-04 18:39:32,752 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-10-04 18:39:33,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-04 18:39:33,242 INFO L299 CfgBuilder]: Removed 6 assume(true) statements.
[2021-10-04 18:39:33,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:33 BoogieIcfgContainer
[2021-10-04 18:39:33,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-04 18:39:33,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-04 18:39:33,252 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-04 18:39:33,261 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-04 18:39:33,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.10 06:39:32" (1/3) ...
[2021-10-04 18:39:33,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c02694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:33, skipping insertion in model container
[2021-10-04 18:39:33,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 06:39:32" (2/3) ...
[2021-10-04 18:39:33,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c02694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 06:39:33, skipping insertion in model container
[2021-10-04 18:39:33,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:33" (3/3) ...
[2021-10-04 18:39:33,267 INFO L111 eAbstractionObserver]: Analyzing ICFG time-trans.wvr.c
[2021-10-04 18:39:33,281 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-10-04 18:39:33,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-04 18:39:33,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-04 18:39:33,282 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-10-04 18:39:33,335 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,336 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,337 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,337 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,338 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,338 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,341 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,342 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,342 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,345 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,345 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,345 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,347 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,348 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,348 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-10-04 18:39:33,358 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2021-10-04 18:39:33,413 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-04 18:39:33,422 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-04 18:39:33,422 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-10-04 18:39:33,439 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2021-10-04 18:39:33,454 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 94 transitions, 212 flow
[2021-10-04 18:39:33,458 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 94 transitions, 212 flow
[2021-10-04 18:39:33,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 94 transitions, 212 flow
[2021-10-04 18:39:33,524 INFO L129 PetriNetUnfolder]: 1/91 cut-off events.
[2021-10-04 18:39:33,527 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2021-10-04 18:39:33,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 1/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place.
[2021-10-04 18:39:33,536 INFO L116 LiptonReduction]: Number of co-enabled transitions 168
[2021-10-04 18:39:37,853 INFO L131 LiptonReduction]: Checked pairs total: 347
[2021-10-04 18:39:37,854 INFO L133 LiptonReduction]: Total number of compositions: 77
[2021-10-04 18:39:37,867 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow
[2021-10-04 18:39:37,882 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:37,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:37,893 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:37,894 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:37,894 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:37,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1585680321, now seen corresponding path program 1 times
[2021-10-04 18:39:37,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:37,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937440250]
[2021-10-04 18:39:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:37,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:38,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:38,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937440250]
[2021-10-04 18:39:38,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937440250] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:38,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:38,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:38,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333554095]
[2021-10-04 18:39:38,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:38,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:38,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:38,519 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:38,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:38,659 INFO L93 Difference]: Finished difference Result 61 states and 96 transitions.
[2021-10-04 18:39:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:38,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:38,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:38,673 INFO L225 Difference]: With dead ends: 61
[2021-10-04 18:39:38,673 INFO L226 Difference]: Without dead ends: 52
[2021-10-04 18:39:38,675 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 140.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:38,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states.
[2021-10-04 18:39:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44.
[2021-10-04 18:39:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.813953488372093) internal successors, (78), 43 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 78 transitions.
[2021-10-04 18:39:38,719 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 78 transitions. Word has length 16
[2021-10-04 18:39:38,720 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:38,720 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 78 transitions.
[2021-10-04 18:39:38,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 78 transitions.
[2021-10-04 18:39:38,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:38,722 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:38,722 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:38,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-04 18:39:38,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:38,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:38,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2119652075, now seen corresponding path program 2 times
[2021-10-04 18:39:38,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:38,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283690589]
[2021-10-04 18:39:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:38,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:38,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:38,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283690589]
[2021-10-04 18:39:38,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283690589] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:38,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:38,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:38,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877514628]
[2021-10-04 18:39:38,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:38,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:38,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:38,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:38,994 INFO L87 Difference]: Start difference. First operand 44 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:39,096 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions.
[2021-10-04 18:39:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:39,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:39,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:39,098 INFO L225 Difference]: With dead ends: 67
[2021-10-04 18:39:39,098 INFO L226 Difference]: Without dead ends: 48
[2021-10-04 18:39:39,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:39,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2021-10-04 18:39:39,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40.
[2021-10-04 18:39:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 39 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 67 transitions.
[2021-10-04 18:39:39,106 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 67 transitions. Word has length 16
[2021-10-04 18:39:39,106 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:39,106 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 67 transitions.
[2021-10-04 18:39:39,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 67 transitions.
[2021-10-04 18:39:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:39,108 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:39,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:39,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-04 18:39:39,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:39,109 INFO L82 PathProgramCache]: Analyzing trace with hash 464991941, now seen corresponding path program 3 times
[2021-10-04 18:39:39,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:39,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123688867]
[2021-10-04 18:39:39,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:39,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:39,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:39,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123688867]
[2021-10-04 18:39:39,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123688867] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:39,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:39,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:39,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613408293]
[2021-10-04 18:39:39,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:39,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:39,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:39,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:39,354 INFO L87 Difference]: Start difference. First operand 40 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:39,471 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions.
[2021-10-04 18:39:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:39,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:39,474 INFO L225 Difference]: With dead ends: 55
[2021-10-04 18:39:39,474 INFO L226 Difference]: Without dead ends: 46
[2021-10-04 18:39:39,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2021-10-04 18:39:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38.
[2021-10-04 18:39:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6756756756756757) internal successors, (62), 37 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions.
[2021-10-04 18:39:39,484 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 16
[2021-10-04 18:39:39,485 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:39,486 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions.
[2021-10-04 18:39:39,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions.
[2021-10-04 18:39:39,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:39,488 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:39,488 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:39,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-04 18:39:39,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:39,493 INFO L82 PathProgramCache]: Analyzing trace with hash -500918869, now seen corresponding path program 4 times
[2021-10-04 18:39:39,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:39,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074267833]
[2021-10-04 18:39:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:39,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:39,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:39,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074267833]
[2021-10-04 18:39:39,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074267833] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:39,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:39,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:39,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393122502]
[2021-10-04 18:39:39,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:39,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:39,728 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:39,840 INFO L93 Difference]: Finished difference Result 49 states and 75 transitions.
[2021-10-04 18:39:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:39,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:39,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:39,842 INFO L225 Difference]: With dead ends: 49
[2021-10-04 18:39:39,842 INFO L226 Difference]: Without dead ends: 36
[2021-10-04 18:39:39,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 106.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2021-10-04 18:39:39,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2021-10-04 18:39:39,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions.
[2021-10-04 18:39:39,848 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16
[2021-10-04 18:39:39,848 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:39,848 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions.
[2021-10-04 18:39:39,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:39,849 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions.
[2021-10-04 18:39:39,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:39,850 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:39,850 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:39,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-04 18:39:39,850 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:39,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:39,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1364762037, now seen corresponding path program 5 times
[2021-10-04 18:39:39,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:39,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819659258]
[2021-10-04 18:39:39,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:39,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:40,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:40,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819659258]
[2021-10-04 18:39:40,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819659258] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:40,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:40,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:40,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867354377]
[2021-10-04 18:39:40,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:40,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:40,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:40,050 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:40,143 INFO L93 Difference]: Finished difference Result 43 states and 63 transitions.
[2021-10-04 18:39:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:40,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:40,145 INFO L225 Difference]: With dead ends: 43
[2021-10-04 18:39:40,145 INFO L226 Difference]: Without dead ends: 28
[2021-10-04 18:39:40,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 110.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2021-10-04 18:39:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2021-10-04 18:39:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions.
[2021-10-04 18:39:40,149 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 16
[2021-10-04 18:39:40,149 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:40,149 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions.
[2021-10-04 18:39:40,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions.
[2021-10-04 18:39:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-10-04 18:39:40,150 INFO L504 BasicCegarLoop]: Found error trace
[2021-10-04 18:39:40,150 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-04 18:39:40,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-04 18:39:40,151 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2021-10-04 18:39:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-04 18:39:40,151 INFO L82 PathProgramCache]: Analyzing trace with hash -395581713, now seen corresponding path program 6 times
[2021-10-04 18:39:40,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-04 18:39:40,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288991595]
[2021-10-04 18:39:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-04 18:39:40,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-04 18:39:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-04 18:39:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-04 18:39:40,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-04 18:39:40,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288991595]
[2021-10-04 18:39:40,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288991595] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-04 18:39:40,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-04 18:39:40,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-04 18:39:40,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836835819]
[2021-10-04 18:39:40,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-04 18:39:40,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-04 18:39:40,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-04 18:39:40,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-04 18:39:40,300 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-04 18:39:40,402 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions.
[2021-10-04 18:39:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-04 18:39:40,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-10-04 18:39:40,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-04 18:39:40,403 INFO L225 Difference]: With dead ends: 27
[2021-10-04 18:39:40,403 INFO L226 Difference]: Without dead ends: 0
[2021-10-04 18:39:40,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-10-04 18:39:40,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-04 18:39:40,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-04 18:39:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-04 18:39:40,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2021-10-04 18:39:40,405 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-04 18:39:40,405 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-04 18:39:40,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-04 18:39:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-04 18:39:40,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-04 18:39:40,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-04 18:39:40,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION
[2021-10-04 18:39:40,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION
[2021-10-04 18:39:40,410 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION
[2021-10-04 18:39:40,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-04 18:39:40,415 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-10-04 18:39:40,415 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-04 18:39:40,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 06:39:40 BasicIcfg
[2021-10-04 18:39:40,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-04 18:39:40,418 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-04 18:39:40,418 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-04 18:39:40,418 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-04 18:39:40,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 06:39:33" (3/4) ...
[2021-10-04 18:39:40,422 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-04 18:39:40,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1
[2021-10-04 18:39:40,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2
[2021-10-04 18:39:40,429 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3
[2021-10-04 18:39:40,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2021-10-04 18:39:40,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2021-10-04 18:39:40,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-10-04 18:39:40,481 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml
[2021-10-04 18:39:40,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-04 18:39:40,483 INFO L168 Benchmark]: Toolchain (without parser) took 8275.99 ms. Allocated memory was 44.0 MB in the beginning and 81.8 MB in the end (delta: 37.7 MB). Free memory was 20.7 MB in the beginning and 55.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,484 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.70 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 19.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.39 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.6 MB in the beginning and 38.4 MB in the end (delta: -18.8 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,485 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 54.5 MB. Free memory was 38.4 MB in the beginning and 37.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,486 INFO L168 Benchmark]: RCFGBuilder took 623.22 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 34.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,486 INFO L168 Benchmark]: TraceAbstraction took 7166.86 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 34.2 MB in the beginning and 59.2 MB in the end (delta: -25.0 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,487 INFO L168 Benchmark]: Witness Printer took 63.58 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 55.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-04 18:39:40,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 322.70 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 19.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 56.39 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.6 MB in the beginning and 38.4 MB in the end (delta: -18.8 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 26.46 ms. Allocated memory is still 54.5 MB. Free memory was 38.4 MB in the beginning and 37.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 623.22 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 34.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 7166.86 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 34.2 MB in the beginning and 59.2 MB in the end (delta: -25.0 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB.
* Witness Printer took 63.58 ms. Allocated memory is still 81.8 MB. Free memory was 59.2 MB in the beginning and 55.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
Lipton Reduction Statistics: ReductionTime: 4396.1ms, 103 PlacesBefore, 30 PlacesAfterwards, 94 TransitionsBefore, 20 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 347 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 347, positive: 347, positive conditional: 0, positive unconditional: 347, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 131, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 131, positive: 131, positive conditional: 0, positive unconditional: 131, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 347, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 131, unknown conditional: 0, unknown unconditional: 131] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 65]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7002.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 15.5ms, AutomataDifference: 721.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4460.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 152 SDslu, 251 SDs, 0 SdLazy, 99 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 132.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 698.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 50.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.8ms SsaConstructionTime, 267.7ms SatisfiabilityAnalysisTime, 1252.2ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 1298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-10-04 18:39:40,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...