/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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 09:11:37,942 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 09:11:37,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 09:11:37,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 09:11:37,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 09:11:37,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 09:11:37,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 09:11:37,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 09:11:37,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 09:11:37,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 09:11:37,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 09:11:37,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 09:11:37,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 09:11:37,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 09:11:37,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 09:11:37,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 09:11:37,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 09:11:37,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 09:11:37,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 09:11:37,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 09:11:37,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 09:11:38,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 09:11:38,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 09:11:38,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 09:11:38,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 09:11:38,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 09:11:38,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 09:11:38,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 09:11:38,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 09:11:38,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 09:11:38,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 09:11:38,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 09:11:38,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 09:11:38,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 09:11:38,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 09:11:38,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 09:11:38,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 09:11:38,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 09:11:38,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 09:11:38,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 09:11:38,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 09:11:38,017 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 09:11:38,043 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 09:11:38,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 09:11:38,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 09:11:38,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 09:11:38,046 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 09:11:38,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 09:11:38,046 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 09:11:38,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 09:11:38,047 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 09:11:38,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 09:11:38,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 09:11:38,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 09:11:38,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 09:11:38,048 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 09:11:38,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 09:11:38,048 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 09:11:38,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 09:11:38,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 09:11:38,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 09:11:38,049 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 09:11:38,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 09:11:38,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 09:11:38,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 09:11:38,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 09:11:38,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 09:11:38,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 09:11:38,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 09:11:38,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 09:11:38,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 09:11:38,051 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true;
[2020-09-25 09:11:38,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 09:11:38,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 09:11:38,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 09:11:38,545 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 09:11:38,545 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 09:11:38,546 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
[2020-09-25 09:11:38,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9ae6ae07/2bcf356963f74cc39d18ef9eb688db1f/FLAG8300b35b3
[2020-09-25 09:11:39,185 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 09:11:39,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i
[2020-09-25 09:11:39,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9ae6ae07/2bcf356963f74cc39d18ef9eb688db1f/FLAG8300b35b3
[2020-09-25 09:11:39,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9ae6ae07/2bcf356963f74cc39d18ef9eb688db1f
[2020-09-25 09:11:39,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 09:11:39,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 09:11:39,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 09:11:39,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 09:11:39,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 09:11:39,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13df943c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39, skipping insertion in model container
[2020-09-25 09:11:39,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 09:11:39,593 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 09:11:39,829 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:11:39,834 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 09:11:39,851 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 09:11:39,867 INFO L208 MainTranslator]: Completed translation
[2020-09-25 09:11:39,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39 WrapperNode
[2020-09-25 09:11:39,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 09:11:39,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 09:11:39,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 09:11:39,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 09:11:39,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (1/1) ...
[2020-09-25 09:11:39,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 09:11:39,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 09:11:39,903 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 09:11:39,903 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 09:11:39,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (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 09:11:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 09:11:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 09:11:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 09:11:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 09:11:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 09:11:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 09:11:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 09:11:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 09:11:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 09:11:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 09:11:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 09:11:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 09:11:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 09:11:40,364 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 09:11:40,364 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 09:11:40,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:11:40 BoogieIcfgContainer
[2020-09-25 09:11:40,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 09:11:40,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 09:11:40,387 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 09:11:40,394 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 09:11:40,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:11:39" (1/3) ...
[2020-09-25 09:11:40,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0d5ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:11:40, skipping insertion in model container
[2020-09-25 09:11:40,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:11:39" (2/3) ...
[2020-09-25 09:11:40,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0d5ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:11:40, skipping insertion in model container
[2020-09-25 09:11:40,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:11:40" (3/3) ...
[2020-09-25 09:11:40,405 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i
[2020-09-25 09:11:40,415 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 09:11:40,425 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 09:11:40,447 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 09:11:40,479 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 09:11:40,479 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 09:11:40,479 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 09:11:40,480 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 09:11:40,480 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 09:11:40,480 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 09:11:40,480 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 09:11:40,480 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 09:11:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states.
[2020-09-25 09:11:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-09-25 09:11:40,513 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:11:40,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:11:40,515 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:11:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:11:40,523 INFO L82 PathProgramCache]: Analyzing trace with hash 627729613, now seen corresponding path program 1 times
[2020-09-25 09:11:40,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:11:40,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998508454]
[2020-09-25 09:11:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:11:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:40,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:40,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:40,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 09:11:40,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:11:40,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-09-25 09:11:40,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:40,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:40,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 09:11:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 09:11:40,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-25 09:11:40,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 09:11:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:11:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:40,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:40,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:40,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:11:40,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:11:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:11:40,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:40,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:11:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:11:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:11:40,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:11:40,877 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 09:11:40,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998508454]
[2020-09-25 09:11:40,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 09:11:40,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 09:11:40,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415996189]
[2020-09-25 09:11:40,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 09:11:40,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:11:40,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 09:11:40,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 09:11:40,911 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states.
[2020-09-25 09:11:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:11:40,972 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions.
[2020-09-25 09:11:40,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 09:11:40,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18
[2020-09-25 09:11:40,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:11:40,985 INFO L225 Difference]: With dead ends: 43
[2020-09-25 09:11:40,986 INFO L226 Difference]: Without dead ends: 23
[2020-09-25 09:11:40,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 09:11:41,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2020-09-25 09:11:41,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2020-09-25 09:11:41,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2020-09-25 09:11:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions.
[2020-09-25 09:11:41,034 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 18
[2020-09-25 09:11:41,034 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:11:41,034 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions.
[2020-09-25 09:11:41,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 09:11:41,035 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions.
[2020-09-25 09:11:41,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-09-25 09:11:41,036 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:11:41,036 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]
[2020-09-25 09:11:41,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 09:11:41,037 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:11:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:11:41,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1623753589, now seen corresponding path program 1 times
[2020-09-25 09:11:41,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:11:41,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604469732]
[2020-09-25 09:11:41,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:11:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:41,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:41,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:41,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:41,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-25 09:11:41,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 09:11:41,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311
[2020-09-25 09:11:41,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:41,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:41,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10
[2020-09-25 09:11:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 09:11:41,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 09:11:41,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 09:11:41,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:11:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:41,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:41,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:11:41,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:11:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 09:11:41,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:41,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:11:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:11:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:11:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:11:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 09:11:41,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604469732]
[2020-09-25 09:11:41,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 09:11:41,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-25 09:11:41,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200420396]
[2020-09-25 09:11:41,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 09:11:41,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:11:41,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 09:11:41,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-25 09:11:41,837 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 11 states.
[2020-09-25 09:11:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:11:42,267 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions.
[2020-09-25 09:11:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 09:11:42,268 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22
[2020-09-25 09:11:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:11:42,269 INFO L225 Difference]: With dead ends: 32
[2020-09-25 09:11:42,270 INFO L226 Difference]: Without dead ends: 27
[2020-09-25 09:11:42,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272
[2020-09-25 09:11:42,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2020-09-25 09:11:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2020-09-25 09:11:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states.
[2020-09-25 09:11:42,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2020-09-25 09:11:42,279 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 22
[2020-09-25 09:11:42,279 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:11:42,279 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2020-09-25 09:11:42,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 09:11:42,279 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2020-09-25 09:11:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-09-25 09:11:42,280 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 09:11:42,281 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 09:11:42,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 09:11:42,281 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 09:11:42,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 09:11:42,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1189706423, now seen corresponding path program 2 times
[2020-09-25 09:11:42,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 09:11:42,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901180965]
[2020-09-25 09:11:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 09:11:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:42,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:42,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35
[2020-09-25 09:11:42,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:11:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178
[2020-09-25 09:11:42,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:42,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 09:11:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 09:11:42,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 09:11:42,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:11:42,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 09:11:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 09:11:42,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 09:11:42,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 09:11:42,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 09:11:42,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 09:11:42,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 09:11:42,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 09:11:42,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0
[2020-09-25 09:11:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 09:11:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 09:11:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 09:11:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 09:11:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-09-25 09:11:42,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901180965]
[2020-09-25 09:11:42,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 09:11:42,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-25 09:11:42,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517267976]
[2020-09-25 09:11:42,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-25 09:11:42,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 09:11:42,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-25 09:11:42,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2020-09-25 09:11:42,704 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states.
[2020-09-25 09:11:42,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 09:11:42,983 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions.
[2020-09-25 09:11:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-25 09:11:42,984 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26
[2020-09-25 09:11:42,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 09:11:42,984 INFO L225 Difference]: With dead ends: 27
[2020-09-25 09:11:42,985 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 09:11:42,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420
[2020-09-25 09:11:42,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 09:11:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 09:11:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 09:11:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 09:11:42,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26
[2020-09-25 09:11:42,987 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 09:11:42,988 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 09:11:42,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-25 09:11:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 09:11:42,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 09:11:42,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 09:11:42,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 09:11:43,089 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-25 09:11:43,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 09:11:43,090 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 09:11:43,090 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 09:11:43,090 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 09:11:43,090 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 09:11:43,090 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed.
[2020-09-25 09:11:43,091 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed.
[2020-09-25 09:11:43,091 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed.
[2020-09-25 09:11:43,091 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed.
[2020-09-25 09:11:43,092 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed.
[2020-09-25 09:11:43,092 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed.
[2020-09-25 09:11:43,092 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-25 09:11:43,092 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-09-25 09:11:43,093 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= main_~lo~0 main_~hi~0) (<= main_~hi~0 .cse0) (<= .cse0 main_~hi~0)))
[2020-09-25 09:11:43,093 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed.
[2020-09-25 09:11:43,093 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 23) the Hoare annotation is: (and (= main_~hi~0 main_~lo~0) (<= (+ (* 2 main_~mid~0) main_~lo~0) main_~hi~0))
[2020-09-25 09:11:43,093 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 09:11:43,094 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 26) no Hoare annotation was computed.
[2020-09-25 09:11:43,094 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-25 09:11:43,095 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed.
[2020-09-25 09:11:43,096 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-25 09:11:43,096 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed.
[2020-09-25 09:11:43,096 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed.
[2020-09-25 09:11:43,096 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true
[2020-09-25 09:11:43,099 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed.
[2020-09-25 09:11:43,100 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-09-25 09:11:43,108 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed.
[2020-09-25 09:11:43,109 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed.
[2020-09-25 09:11:43,110 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed.
[2020-09-25 09:11:43,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:11:43 BoogieIcfgContainer
[2020-09-25 09:11:43,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 09:11:43,150 INFO L168 Benchmark]: Toolchain (without parser) took 3605.12 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 101.3 MB in the beginning and 220.0 MB in the end (delta: -118.8 MB). Peak memory consumption was 116.0 MB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,151 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.09 ms. Allocated memory is still 138.9 MB. Free memory was 100.6 MB in the beginning and 91.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,155 INFO L168 Benchmark]: Boogie Preprocessor took 32.97 ms. Allocated memory is still 138.9 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,157 INFO L168 Benchmark]: RCFGBuilder took 468.56 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 89.6 MB in the beginning and 167.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,163 INFO L168 Benchmark]: TraceAbstraction took 2754.50 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 167.1 MB in the beginning and 220.0 MB in the end (delta: -52.9 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB.
[2020-09-25 09:11:43,174 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 324.09 ms. Allocated memory is still 138.9 MB. Free memory was 100.6 MB in the beginning and 91.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 32.97 ms. Allocated memory is still 138.9 MB. Free memory was 91.2 MB in the beginning and 89.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 468.56 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 89.6 MB in the beginning and 167.7 MB in the end (delta: -78.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2754.50 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 167.1 MB in the beginning and 220.0 MB in the end (delta: -52.9 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 8]: 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: 19]: Loop Invariant
Derived loop invariant: (lo <= hi && hi <= 2 * mid + lo) && 2 * mid + lo <= hi
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 12 SDslu, 186 SDs, 0 SdLazy, 213 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 34 HoareAnnotationTreeSize, 9 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 59 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 8821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 1/7 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...