/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 05:42:12,235 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 05:42:12,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 05:42:12,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 05:42:12,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 05:42:12,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 05:42:12,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 05:42:12,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 05:42:12,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 05:42:12,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 05:42:12,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 05:42:12,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 05:42:12,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 05:42:12,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 05:42:12,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 05:42:12,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 05:42:12,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 05:42:12,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 05:42:12,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 05:42:12,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 05:42:12,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 05:42:12,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 05:42:12,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 05:42:12,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 05:42:12,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 05:42:12,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 05:42:12,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 05:42:12,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 05:42:12,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 05:42:12,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 05:42:12,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 05:42:12,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 05:42:12,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 05:42:12,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 05:42:12,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 05:42:12,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 05:42:12,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 05:42:12,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 05:42:12,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 05:42:12,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 05:42:12,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 05:42:12,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 05:42:12,374 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 05:42:12,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 05:42:12,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 05:42:12,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 05:42:12,377 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 05:42:12,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 05:42:12,377 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 05:42:12,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 05:42:12,378 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 05:42:12,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 05:42:12,380 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 05:42:12,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 05:42:12,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 05:42:12,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 05:42:12,381 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 05:42:12,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 05:42:12,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 05:42:12,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 05:42:12,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 05:42:12,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 05:42:12,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 05:42:12,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 05:42:12,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 05:42:12,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 05:42:12,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;
[2020-09-25 05:42:12,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 05:42:12,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 05:42:12,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 05:42:12,921 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 05:42:12,921 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 05:42:12,922 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i
[2020-09-25 05:42:12,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6521cba1/446a6a93d25b47da90ae2988c1a0378d/FLAGe768e4324
[2020-09-25 05:42:13,456 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 05:42:13,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/data_structures_set_multi_proc_trivial_ground.i
[2020-09-25 05:42:13,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6521cba1/446a6a93d25b47da90ae2988c1a0378d/FLAGe768e4324
[2020-09-25 05:42:13,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6521cba1/446a6a93d25b47da90ae2988c1a0378d
[2020-09-25 05:42:13,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 05:42:13,836 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 05:42:13,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 05:42:13,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 05:42:13,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 05:42:13,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:42:13" (1/1) ...
[2020-09-25 05:42:13,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a0aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:13, skipping insertion in model container
[2020-09-25 05:42:13,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:42:13" (1/1) ...
[2020-09-25 05:42:13,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 05:42:13,888 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 05:42:14,122 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:42:14,134 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 05:42:14,168 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:42:14,189 INFO L208 MainTranslator]: Completed translation
[2020-09-25 05:42:14,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14 WrapperNode
[2020-09-25 05:42:14,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 05:42:14,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 05:42:14,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 05:42:14,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 05:42:14,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (1/1) ...
[2020-09-25 05:42:14,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 05:42:14,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 05:42:14,384 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 05:42:14,384 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 05:42:14,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (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
[2020-09-25 05:42:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 05:42:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 05:42:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 05:42:14,480 INFO L138 BoogieDeclarations]: Found implementation of procedure insert
[2020-09-25 05:42:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure elem_exists
[2020-09-25 05:42:14,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 05:42:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 05:42:14,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 05:42:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 05:42:14,482 INFO L130 BoogieDeclarations]: Found specification of procedure insert
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure elem_exists
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 05:42:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 05:42:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 05:42:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 05:42:14,946 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 05:42:14,947 INFO L295 CfgBuilder]: Removed 10 assume(true) statements.
[2020-09-25 05:42:14,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:42:14 BoogieIcfgContainer
[2020-09-25 05:42:14,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 05:42:14,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 05:42:14,955 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 05:42:14,959 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 05:42:14,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:42:13" (1/3) ...
[2020-09-25 05:42:14,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b84927f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:42:14, skipping insertion in model container
[2020-09-25 05:42:14,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:14" (2/3) ...
[2020-09-25 05:42:14,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b84927f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:42:14, skipping insertion in model container
[2020-09-25 05:42:14,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:42:14" (3/3) ...
[2020-09-25 05:42:14,963 INFO L109 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i
[2020-09-25 05:42:14,975 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 05:42:14,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 05:42:15,007 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 05:42:15,040 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 05:42:15,040 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 05:42:15,040 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 05:42:15,040 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 05:42:15,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 05:42:15,041 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 05:42:15,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 05:42:15,041 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 05:42:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states.
[2020-09-25 05:42:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-25 05:42:15,075 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:15,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:15,077 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:15,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:15,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1588916751, now seen corresponding path program 1 times
[2020-09-25 05:42:15,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:15,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515307544]
[2020-09-25 05:42:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:15,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:15,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:15,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:15,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-25 05:42:15,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 05:42:15,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509
[2020-09-25 05:42:15,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:15,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:15,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-25 05:42:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 05:42:15,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:15,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:15,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:15,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:15,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 05:42:15,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:15,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:15,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:15,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 05:42:15,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515307544]
[2020-09-25 05:42:15,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:15,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 05:42:15,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466821661]
[2020-09-25 05:42:15,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 05:42:15,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:15,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 05:42:15,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 05:42:15,859 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states.
[2020-09-25 05:42:16,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:16,155 INFO L93 Difference]: Finished difference Result 245 states and 295 transitions.
[2020-09-25 05:42:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 05:42:16,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23
[2020-09-25 05:42:16,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:16,174 INFO L225 Difference]: With dead ends: 245
[2020-09-25 05:42:16,174 INFO L226 Difference]: Without dead ends: 123
[2020-09-25 05:42:16,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 05:42:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2020-09-25 05:42:16,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2020-09-25 05:42:16,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states.
[2020-09-25 05:42:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions.
[2020-09-25 05:42:16,249 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 23
[2020-09-25 05:42:16,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:16,249 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions.
[2020-09-25 05:42:16,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 05:42:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions.
[2020-09-25 05:42:16,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-25 05:42:16,252 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:16,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:16,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 05:42:16,253 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:16,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:16,254 INFO L82 PathProgramCache]: Analyzing trace with hash -119454780, now seen corresponding path program 1 times
[2020-09-25 05:42:16,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:16,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258953655]
[2020-09-25 05:42:16,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:16,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:16,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:16,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-25 05:42:16,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 05:42:16,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 321
[2020-09-25 05:42:16,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:16,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:42:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 05:42:16,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 05:42:16,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:16,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:16,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:16,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:16,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:16,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:16,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 05:42:16,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:16,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:16,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:16,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 05:42:16,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258953655]
[2020-09-25 05:42:16,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:16,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-25 05:42:16,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431444406]
[2020-09-25 05:42:16,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-25 05:42:16,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:16,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-25 05:42:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 05:42:16,656 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 4 states.
[2020-09-25 05:42:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:16,970 INFO L93 Difference]: Finished difference Result 303 states and 342 transitions.
[2020-09-25 05:42:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-25 05:42:16,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23
[2020-09-25 05:42:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:16,974 INFO L225 Difference]: With dead ends: 303
[2020-09-25 05:42:16,974 INFO L226 Difference]: Without dead ends: 199
[2020-09-25 05:42:16,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-25 05:42:16,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2020-09-25 05:42:16,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 124.
[2020-09-25 05:42:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states.
[2020-09-25 05:42:16,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions.
[2020-09-25 05:42:16,995 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 23
[2020-09-25 05:42:16,995 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:16,995 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions.
[2020-09-25 05:42:16,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-25 05:42:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions.
[2020-09-25 05:42:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 05:42:16,997 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:16,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:16,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 05:42:16,998 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:16,998 INFO L82 PathProgramCache]: Analyzing trace with hash -395870253, now seen corresponding path program 1 times
[2020-09-25 05:42:16,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:16,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660701906]
[2020-09-25 05:42:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:17,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:17,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39
[2020-09-25 05:42:17,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 05:42:17,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446
[2020-09-25 05:42:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:17,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 05:42:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 05:42:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 05:42:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:17,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:17,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:17,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:17,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:17,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 05:42:17,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:17,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 05:42:17,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660701906]
[2020-09-25 05:42:17,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:17,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 05:42:17,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948777657]
[2020-09-25 05:42:17,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 05:42:17,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:17,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 05:42:17,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-25 05:42:17,522 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand 6 states.
[2020-09-25 05:42:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:17,841 INFO L93 Difference]: Finished difference Result 240 states and 268 transitions.
[2020-09-25 05:42:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 05:42:17,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30
[2020-09-25 05:42:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:17,845 INFO L225 Difference]: With dead ends: 240
[2020-09-25 05:42:17,845 INFO L226 Difference]: Without dead ends: 135
[2020-09-25 05:42:17,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2020-09-25 05:42:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states.
[2020-09-25 05:42:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 123.
[2020-09-25 05:42:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states.
[2020-09-25 05:42:17,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 135 transitions.
[2020-09-25 05:42:17,876 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 135 transitions. Word has length 30
[2020-09-25 05:42:17,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:17,877 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 135 transitions.
[2020-09-25 05:42:17,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 05:42:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 135 transitions.
[2020-09-25 05:42:17,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-09-25 05:42:17,881 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:17,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:17,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 05:42:17,882 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:17,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:17,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1571460690, now seen corresponding path program 1 times
[2020-09-25 05:42:17,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:17,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806604180]
[2020-09-25 05:42:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:17,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:18,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:18,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:18,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:22,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:22,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79
[2020-09-25 05:42:22,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 05:42:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001
[2020-09-25 05:42:22,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:22,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:42:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31
[2020-09-25 05:42:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-09-25 05:42:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 05:42:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:22,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:22,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:22,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:22,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:22,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 05:42:22,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:22,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:22,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:22,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:22,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 05:42:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29
[2020-09-25 05:42:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:22,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:22,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:22,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 05:42:22,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:22,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:42:22,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:22,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:22,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-25 05:42:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:23,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44
[2020-09-25 05:42:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:23,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:23,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 05:42:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 05:42:23,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:23,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-25 05:42:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:23,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 05:42:23,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806604180]
[2020-09-25 05:42:23,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:23,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 05:42:23,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943523954]
[2020-09-25 05:42:23,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 05:42:23,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:23,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 05:42:23,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 05:42:23,062 INFO L87 Difference]: Start difference. First operand 123 states and 135 transitions. Second operand 5 states.
[2020-09-25 05:42:23,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:23,329 INFO L93 Difference]: Finished difference Result 258 states and 287 transitions.
[2020-09-25 05:42:23,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 05:42:23,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66
[2020-09-25 05:42:23,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:23,332 INFO L225 Difference]: With dead ends: 258
[2020-09-25 05:42:23,332 INFO L226 Difference]: Without dead ends: 167
[2020-09-25 05:42:23,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 05:42:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states.
[2020-09-25 05:42:23,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 124.
[2020-09-25 05:42:23,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states.
[2020-09-25 05:42:23,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 136 transitions.
[2020-09-25 05:42:23,344 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 136 transitions. Word has length 66
[2020-09-25 05:42:23,344 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:23,345 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 136 transitions.
[2020-09-25 05:42:23,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 05:42:23,345 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions.
[2020-09-25 05:42:23,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2020-09-25 05:42:23,347 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:23,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:23,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 05:42:23,348 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:23,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1243827998, now seen corresponding path program 1 times
[2020-09-25 05:42:23,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:23,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082917037]
[2020-09-25 05:42:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:23,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:23,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:28,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86
[2020-09-25 05:42:28,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 05:42:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 05:42:28,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:28,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 05:42:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 05:42:28,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:42:28,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:28,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:28,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:28,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:28,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:28,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 05:42:28,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:28,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:28,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:28,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:28,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2020-09-25 05:42:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:28,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:28,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 05:42:28,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 05:42:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:28,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-25 05:42:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:28,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2020-09-25 05:42:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:28,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:28,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 05:42:28,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 05:42:28,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:28,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-25 05:42:28,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:28,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:28,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 05:42:28,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082917037]
[2020-09-25 05:42:28,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 05:42:28,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-25 05:42:28,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478140700]
[2020-09-25 05:42:28,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 05:42:28,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:28,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 05:42:28,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-25 05:42:28,468 INFO L87 Difference]: Start difference. First operand 124 states and 136 transitions. Second operand 7 states.
[2020-09-25 05:42:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:28,824 INFO L93 Difference]: Finished difference Result 286 states and 319 transitions.
[2020-09-25 05:42:28,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 05:42:28,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73
[2020-09-25 05:42:28,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:28,826 INFO L225 Difference]: With dead ends: 286
[2020-09-25 05:42:28,826 INFO L226 Difference]: Without dead ends: 182
[2020-09-25 05:42:28,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110
[2020-09-25 05:42:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2020-09-25 05:42:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 131.
[2020-09-25 05:42:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states.
[2020-09-25 05:42:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions.
[2020-09-25 05:42:28,849 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 73
[2020-09-25 05:42:28,849 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:28,849 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions.
[2020-09-25 05:42:28,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 05:42:28,851 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions.
[2020-09-25 05:42:28,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2020-09-25 05:42:28,856 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:28,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:28,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 05:42:28,856 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:28,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:28,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1672918675, now seen corresponding path program 2 times
[2020-09-25 05:42:28,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:28,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878340372]
[2020-09-25 05:42:28,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:28,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:30,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:30,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:33,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:33,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93
[2020-09-25 05:42:33,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 05:42:33,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010
[2020-09-25 05:42:33,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:33,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:33,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 05:42:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-09-25 05:42:33,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 05:42:33,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:33,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:33,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:33,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:33,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:33,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 05:42:33,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:33,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:33,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:33,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:33,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2020-09-25 05:42:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:33,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:33,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:33,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 05:42:33,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 05:42:33,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:33,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:33,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-25 05:42:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:34,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2020-09-25 05:42:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:34,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:34,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:34,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 05:42:34,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:34,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 05:42:34,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:34,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-25 05:42:34,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2020-09-25 05:42:34,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878340372]
[2020-09-25 05:42:34,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 05:42:34,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7
[2020-09-25 05:42:34,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750797025]
[2020-09-25 05:42:34,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-25 05:42:34,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:34,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-25 05:42:34,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-25 05:42:34,038 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 7 states.
[2020-09-25 05:42:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:34,477 INFO L93 Difference]: Finished difference Result 270 states and 299 transitions.
[2020-09-25 05:42:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-25 05:42:34,478 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 80
[2020-09-25 05:42:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:34,481 INFO L225 Difference]: With dead ends: 270
[2020-09-25 05:42:34,481 INFO L226 Difference]: Without dead ends: 179
[2020-09-25 05:42:34,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90
[2020-09-25 05:42:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states.
[2020-09-25 05:42:34,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 138.
[2020-09-25 05:42:34,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states.
[2020-09-25 05:42:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions.
[2020-09-25 05:42:34,510 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 80
[2020-09-25 05:42:34,510 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:34,511 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions.
[2020-09-25 05:42:34,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-25 05:42:34,512 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions.
[2020-09-25 05:42:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2020-09-25 05:42:34,517 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:34,518 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:34,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 05:42:34,518 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:34,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1877412479, now seen corresponding path program 3 times
[2020-09-25 05:42:34,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:34,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982647030]
[2020-09-25 05:42:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:34,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:34,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:36,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:36,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:39,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:39,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100
[2020-09-25 05:42:39,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 05:42:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013
[2020-09-25 05:42:39,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:39,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:39,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 05:42:39,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66
[2020-09-25 05:42:39,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-25 05:42:39,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:39,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:39,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:39,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 05:42:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:39,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:39,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2020-09-25 05:42:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:39,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:39,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:39,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 05:42:39,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:39,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 05:42:39,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:39,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 05:42:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:39,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-25 05:42:39,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:39,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-09-25 05:42:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:39,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:39,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:39,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 05:42:39,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:39,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 05:42:39,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:39,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-25 05:42:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-09-25 05:42:39,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982647030]
[2020-09-25 05:42:39,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:39,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 05:42:39,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160400563]
[2020-09-25 05:42:39,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 05:42:39,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:39,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 05:42:39,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-25 05:42:39,724 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 6 states.
[2020-09-25 05:42:40,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:40,011 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions.
[2020-09-25 05:42:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 05:42:40,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87
[2020-09-25 05:42:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:40,013 INFO L225 Difference]: With dead ends: 222
[2020-09-25 05:42:40,013 INFO L226 Difference]: Without dead ends: 144
[2020-09-25 05:42:40,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2020-09-25 05:42:40,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2020-09-25 05:42:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144.
[2020-09-25 05:42:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states.
[2020-09-25 05:42:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 157 transitions.
[2020-09-25 05:42:40,022 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 157 transitions. Word has length 87
[2020-09-25 05:42:40,023 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:40,023 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 157 transitions.
[2020-09-25 05:42:40,023 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 05:42:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 157 transitions.
[2020-09-25 05:42:40,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2020-09-25 05:42:40,024 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:40,025 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:42:40,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 05:42:40,025 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:40,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:40,025 INFO L82 PathProgramCache]: Analyzing trace with hash -914480437, now seen corresponding path program 1 times
[2020-09-25 05:42:40,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:40,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587751875]
[2020-09-25 05:42:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:40,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:40,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:40,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:45,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:45,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103
[2020-09-25 05:42:45,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 05:42:45,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000
[2020-09-25 05:42:45,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:45,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:42:45,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 05:42:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52
[2020-09-25 05:42:45,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:45,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:45,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:45,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 05:42:45,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 05:42:45,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:45,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:45,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:45,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:45,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:45,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:45,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2020-09-25 05:42:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:45,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:45,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-25 05:42:45,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:45,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-25 05:42:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 05:42:45,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2020-09-25 05:42:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:45,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:45,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:45,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 05:42:45,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 05:42:45,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:45,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:45,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-25 05:42:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:45,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2020-09-25 05:42:45,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587751875]
[2020-09-25 05:42:45,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:45,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 05:42:45,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608398510]
[2020-09-25 05:42:45,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 05:42:45,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:45,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 05:42:45,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2020-09-25 05:42:45,203 INFO L87 Difference]: Start difference. First operand 144 states and 157 transitions. Second operand 8 states.
[2020-09-25 05:42:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:42:45,460 INFO L93 Difference]: Finished difference Result 188 states and 205 transitions.
[2020-09-25 05:42:45,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 05:42:45,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 90
[2020-09-25 05:42:45,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:42:45,461 INFO L225 Difference]: With dead ends: 188
[2020-09-25 05:42:45,462 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 05:42:45,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210
[2020-09-25 05:42:45,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 05:42:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 05:42:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 05:42:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 05:42:45,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90
[2020-09-25 05:42:45,464 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:42:45,464 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 05:42:45,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 05:42:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 05:42:45,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 05:42:45,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 05:42:45,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 05:42:45,690 INFO L271 CegarLoopResult]: At program point elem_existsENTRY(lines 9 15) the Hoare annotation is: true
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed.
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed.
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point elem_existsFINAL(lines 9 15) no Hoare annotation was computed.
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed.
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point L11-3(lines 11 13) no Hoare annotation was computed.
[2020-09-25 05:42:45,691 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed.
[2020-09-25 05:42:45,692 INFO L268 CegarLoopResult]: For program point L11-5(line 11) no Hoare annotation was computed.
[2020-09-25 05:42:45,692 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (let ((.cse0 (= elem_exists_~size |elem_exists_#in~size|))) (or (and (<= 0 elem_exists_~i~0) .cse0) (and .cse0 (<= 1 |elem_exists_#in~size|))))
[2020-09-25 05:42:45,692 INFO L268 CegarLoopResult]: For program point L11-7(lines 11 13) no Hoare annotation was computed.
[2020-09-25 05:42:45,692 INFO L268 CegarLoopResult]: For program point elem_existsEXIT(lines 9 15) no Hoare annotation was computed.
[2020-09-25 05:42:45,692 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed.
[2020-09-25 05:42:45,692 INFO L268 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,693 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,694 INFO L271 CegarLoopResult]: At program point insertENTRY(lines 5 8) the Hoare annotation is: true
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point insertFINAL(lines 5 8) no Hoare annotation was computed.
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point L5(lines 5 8) no Hoare annotation was computed.
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed.
[2020-09-25 05:42:45,694 INFO L268 CegarLoopResult]: For program point L5-1(lines 5 8) no Hoare annotation was computed.
[2020-09-25 05:42:45,695 INFO L268 CegarLoopResult]: For program point insertEXIT(lines 5 8) no Hoare annotation was computed.
[2020-09-25 05:42:45,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,695 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 05:42:45,695 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 05:42:45,695 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 05:42:45,695 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 56) no Hoare annotation was computed.
[2020-09-25 05:42:45,695 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed.
[2020-09-25 05:42:45,696 INFO L268 CegarLoopResult]: For program point L52-1(line 52) no Hoare annotation was computed.
[2020-09-25 05:42:45,696 INFO L264 CegarLoopResult]: At program point L52-2(line 52) the Hoare annotation is: false
[2020-09-25 05:42:45,696 INFO L268 CegarLoopResult]: For program point L52-3(line 52) no Hoare annotation was computed.
[2020-09-25 05:42:45,696 INFO L268 CegarLoopResult]: For program point L52-4(line 52) no Hoare annotation was computed.
[2020-09-25 05:42:45,696 INFO L268 CegarLoopResult]: For program point L44-2(lines 44 48) no Hoare annotation was computed.
[2020-09-25 05:42:45,696 INFO L268 CegarLoopResult]: For program point L44-3(line 44) no Hoare annotation was computed.
[2020-09-25 05:42:45,697 INFO L268 CegarLoopResult]: For program point L44-4(line 44) no Hoare annotation was computed.
[2020-09-25 05:42:45,697 INFO L264 CegarLoopResult]: At program point L44-5(lines 44 48) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0))
[2020-09-25 05:42:45,697 INFO L268 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed.
[2020-09-25 05:42:45,697 INFO L268 CegarLoopResult]: For program point L36-3(lines 36 39) no Hoare annotation was computed.
[2020-09-25 05:42:45,697 INFO L268 CegarLoopResult]: For program point L36-4(line 36) no Hoare annotation was computed.
[2020-09-25 05:42:45,697 INFO L268 CegarLoopResult]: For program point L36-5(line 36) no Hoare annotation was computed.
[2020-09-25 05:42:45,698 INFO L264 CegarLoopResult]: At program point L36-6(lines 36 39) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0))
[2020-09-25 05:42:45,698 INFO L268 CegarLoopResult]: For program point L36-7(lines 36 39) no Hoare annotation was computed.
[2020-09-25 05:42:45,698 INFO L268 CegarLoopResult]: For program point L28-2(lines 28 32) no Hoare annotation was computed.
[2020-09-25 05:42:45,698 INFO L268 CegarLoopResult]: For program point L28-3(line 28) no Hoare annotation was computed.
[2020-09-25 05:42:45,698 INFO L268 CegarLoopResult]: For program point L28-4(line 28) no Hoare annotation was computed.
[2020-09-25 05:42:45,698 INFO L264 CegarLoopResult]: At program point L28-5(lines 28 32) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0))
[2020-09-25 05:42:45,698 INFO L268 CegarLoopResult]: For program point L28-6(lines 28 32) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L45-3(lines 45 47) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L45-4(line 45) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L45-5(line 45) no Hoare annotation was computed.
[2020-09-25 05:42:45,699 INFO L264 CegarLoopResult]: At program point L45-6(lines 45 47) the Hoare annotation is: false
[2020-09-25 05:42:45,699 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point L29-3(lines 29 31) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point L29-4(line 29) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point L29-5(line 29) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L264 CegarLoopResult]: At program point L29-6(lines 29 31) the Hoare annotation is: false
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed.
[2020-09-25 05:42:45,700 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 56) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L264 CegarLoopResult]: At program point L46-2(line 46) the Hoare annotation is: false
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L46-3(line 46) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L46-4(line 46) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L38-1(line 38) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed.
[2020-09-25 05:42:45,701 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed.
[2020-09-25 05:42:45,702 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 16 56) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|))
[2020-09-25 05:42:45,702 INFO L268 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed.
[2020-09-25 05:42:45,702 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: false
[2020-09-25 05:42:45,702 INFO L268 CegarLoopResult]: For program point L30-3(line 30) no Hoare annotation was computed.
[2020-09-25 05:42:45,702 INFO L268 CegarLoopResult]: For program point L30-4(line 30) no Hoare annotation was computed.
[2020-09-25 05:42:45,702 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 05:42:45,702 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 25) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L22-4(line 22) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L22-5(line 22) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L264 CegarLoopResult]: At program point L22-6(lines 22 25) the Hoare annotation is: (<= main_~n~0 0)
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L22-7(lines 22 25) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L40-2(lines 40 49) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L40-3(line 40) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L268 CegarLoopResult]: For program point L40-4(line 40) no Hoare annotation was computed.
[2020-09-25 05:42:45,703 INFO L264 CegarLoopResult]: At program point L40-5(lines 40 49) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0))
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L40-6(lines 40 49) no Hoare annotation was computed.
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed.
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,704 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~x~0 0))
[2020-09-25 05:42:45,704 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 43) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-4(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-5(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-7(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-8(line 41) no Hoare annotation was computed.
[2020-09-25 05:42:45,705 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 43) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L33-1(line 33) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L50-3(line 50) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L50-4(line 50) no Hoare annotation was computed.
[2020-09-25 05:42:45,706 INFO L264 CegarLoopResult]: At program point L50-5(lines 50 54) the Hoare annotation is: (and (<= main_~n~0 main_~x~0) (<= main_~n~0 0))
[2020-09-25 05:42:45,706 INFO L268 CegarLoopResult]: For program point L50-6(lines 50 54) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L264 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: false
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L42-2(line 42) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L42-3(line 42) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L42-4(line 42) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L42-5(line 42) no Hoare annotation was computed.
[2020-09-25 05:42:45,707 INFO L268 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L51-3(lines 51 53) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L51-4(line 51) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed.
[2020-09-25 05:42:45,708 INFO L268 CegarLoopResult]: For program point L51-5(line 51) no Hoare annotation was computed.
[2020-09-25 05:42:45,709 INFO L264 CegarLoopResult]: At program point L51-6(lines 51 53) the Hoare annotation is: false
[2020-09-25 05:42:45,709 INFO L268 CegarLoopResult]: For program point L2-1(line 2) no Hoare annotation was computed.
[2020-09-25 05:42:45,709 INFO L268 CegarLoopResult]: For program point L2-3(line 2) no Hoare annotation was computed.
[2020-09-25 05:42:45,709 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true
[2020-09-25 05:42:45,709 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed.
[2020-09-25 05:42:45,709 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed.
[2020-09-25 05:42:45,709 INFO L268 CegarLoopResult]: For program point L2(line 2) no Hoare annotation was computed.
[2020-09-25 05:42:45,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:42:45 BoogieIcfgContainer
[2020-09-25 05:42:45,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 05:42:45,738 INFO L168 Benchmark]: Toolchain (without parser) took 31905.23 ms. Allocated memory was 141.0 MB in the beginning and 384.3 MB in the end (delta: 243.3 MB). Free memory was 104.1 MB in the beginning and 124.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 223.0 MB. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,739 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.05 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 92.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,741 INFO L168 Benchmark]: Boogie Preprocessor took 192.53 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 181.8 MB in the end (delta: -89.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,742 INFO L168 Benchmark]: RCFGBuilder took 569.46 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 152.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,743 INFO L168 Benchmark]: TraceAbstraction took 30779.97 ms. Allocated memory was 204.5 MB in the beginning and 384.3 MB in the end (delta: 179.8 MB). Free memory was 152.4 MB in the beginning and 124.4 MB in the end (delta: 28.0 MB). Peak memory consumption was 207.8 MB. Max. memory is 7.1 GB.
[2020-09-25 05:42:45,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 354.05 ms. Allocated memory is still 141.0 MB. Free memory was 103.7 MB in the beginning and 92.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 192.53 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 181.8 MB in the end (delta: -89.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 569.46 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 152.4 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 30779.97 ms. Allocated memory was 204.5 MB in the beginning and 384.3 MB in the end (delta: 179.8 MB). Free memory was 152.4 MB in the beginning and 124.4 MB in the end (delta: 28.0 MB). Peak memory consumption was 207.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 2]: 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
- InvariantResult [Line: 29]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 28]: Loop Invariant
Derived loop invariant: n <= x && x <= 0
- InvariantResult [Line: 45]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 44]: Loop Invariant
Derived loop invariant: n <= x && x <= 0
- InvariantResult [Line: 51]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 50]: Loop Invariant
Derived loop invariant: n <= x && n <= 0
- InvariantResult [Line: 40]: Loop Invariant
Derived loop invariant: n <= x && x <= 0
- InvariantResult [Line: 36]: Loop Invariant
Derived loop invariant: n <= x && x <= 0
- InvariantResult [Line: 11]: Loop Invariant
Derived loop invariant: (0 <= i && size == \old(size)) || (size == \old(size) && 1 <= \old(size))
- InvariantResult [Line: 22]: Loop Invariant
Derived loop invariant: n <= 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 885 SDtfs, 776 SDslu, 1213 SDs, 0 SdLazy, 1543 SolverSat, 133 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 222 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 71 PreInvPairs, 82 NumberOfFragments, 89 HoareAnnotationTreeSize, 71 FomulaSimplifications, 174 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 27.1s InterpolantComputationTime, 472 NumberOfCodeBlocks, 472 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 52820 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 48/50 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...