/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt5.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:03:30,710 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:03:30,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:03:30,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:03:30,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:03:30,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:03:30,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:03:30,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:03:30,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:03:30,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:03:30,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:03:30,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:03:30,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:03:30,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:03:30,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:03:30,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:03:30,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:03:30,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:03:30,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:03:30,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:03:30,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:03:30,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:03:30,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:03:30,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:03:30,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:03:30,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:03:30,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:03:30,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:03:30,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:03:30,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:03:30,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:03:30,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:03:30,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:03:30,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:03:30,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:03:30,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:03:30,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:03:30,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:03:30,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:03:30,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:03:30,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:03:30,840 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 08:03:30,889 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 08:03:30,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:03:30,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:03:30,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 08:03:30,893 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 08:03:30,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:03:30,893 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 08:03:30,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 08:03:30,894 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 08:03:30,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 08:03:30,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:03:30,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:03:30,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:03:30,896 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 08:03:30,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 08:03:30,897 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 08:03:30,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:03:30,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:03:30,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 08:03:30,897 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 08:03:30,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 08:03:30,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:03:30,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:03:30,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:03:30,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:03:30,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 08:03:30,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:03:30,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:03:30,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 08:03:30,900 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true;
[2020-09-25 08:03:31,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:03:31,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:03:31,457 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:03:31,459 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 08:03:31,460 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 08:03:31,461 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt5.c
[2020-09-25 08:03:31,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2357a2c4/3f8139fc52174496b0bff61c0effe677/FLAGe4c8afc07
[2020-09-25 08:03:32,130 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 08:03:32,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt5.c
[2020-09-25 08:03:32,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2357a2c4/3f8139fc52174496b0bff61c0effe677/FLAGe4c8afc07
[2020-09-25 08:03:32,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c2357a2c4/3f8139fc52174496b0bff61c0effe677
[2020-09-25 08:03:32,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:03:32,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:03:32,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:03:32,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:03:32,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:03:32,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6698ff07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32, skipping insertion in model container
[2020-09-25 08:03:32,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 08:03:32,563 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:03:32,788 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:03:32,793 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 08:03:32,816 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:03:32,833 INFO L208 MainTranslator]: Completed translation
[2020-09-25 08:03:32,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32 WrapperNode
[2020-09-25 08:03:32,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:03:32,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:03:32,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:03:32,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:03:32,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (1/1) ...
[2020-09-25 08:03:32,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:03:32,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:03:32,952 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:03:32,952 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:03:32,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (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 08:03:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:03:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:03:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 08:03:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 08:03:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:03:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:03:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 08:03:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 08:03:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 08:03:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:03:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:03:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:03:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:03:33,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:03:33,344 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 08:03:33,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:03:33 BoogieIcfgContainer
[2020-09-25 08:03:33,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:03:33,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:03:33,352 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:03:33,357 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:03:33,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:03:32" (1/3) ...
[2020-09-25 08:03:33,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fe2910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:03:33, skipping insertion in model container
[2020-09-25 08:03:33,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:03:32" (2/3) ...
[2020-09-25 08:03:33,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fe2910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:03:33, skipping insertion in model container
[2020-09-25 08:03:33,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:03:33" (3/3) ...
[2020-09-25 08:03:33,366 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt5.c
[2020-09-25 08:03:33,396 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:03:33,420 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:03:33,459 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:03:33,493 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:03:33,493 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 08:03:33,493 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:03:33,493 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:03:33,493 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:03:33,494 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 08:03:33,494 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:03:33,494 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:03:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-09-25 08:03:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-25 08:03:33,524 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:33,525 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]
[2020-09-25 08:03:33,525 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:33,532 INFO L82 PathProgramCache]: Analyzing trace with hash -687260303, now seen corresponding path program 1 times
[2020-09-25 08:03:33,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:33,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19784545]
[2020-09-25 08:03:33,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:33,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:33,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:34,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:34,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30
[2020-09-25 08:03:34,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:03:34,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462
[2020-09-25 08:03:34,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:34,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23
[2020-09-25 08:03:34,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7
[2020-09-25 08:03:34,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:34,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:34,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:34,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:34,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:34,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-25 08:03:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:34,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:34,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:34,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 08:03:34,229 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 08:03:34,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19784545]
[2020-09-25 08:03:34,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:03:34,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 08:03:34,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470127788]
[2020-09-25 08:03:34,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 08:03:34,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:34,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 08:03:34,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 08:03:34,266 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 3 states.
[2020-09-25 08:03:34,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:34,396 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions.
[2020-09-25 08:03:34,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 08:03:34,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21
[2020-09-25 08:03:34,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:34,415 INFO L225 Difference]: With dead ends: 52
[2020-09-25 08:03:34,416 INFO L226 Difference]: Without dead ends: 32
[2020-09-25 08:03:34,421 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 08:03:34,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2020-09-25 08:03:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2020-09-25 08:03:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-09-25 08:03:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions.
[2020-09-25 08:03:34,492 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 21
[2020-09-25 08:03:34,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:34,493 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions.
[2020-09-25 08:03:34,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 08:03:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions.
[2020-09-25 08:03:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2020-09-25 08:03:34,495 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:34,496 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]
[2020-09-25 08:03:34,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:03:34,497 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:34,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:34,498 INFO L82 PathProgramCache]: Analyzing trace with hash -715889454, now seen corresponding path program 1 times
[2020-09-25 08:03:34,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:34,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676758177]
[2020-09-25 08:03:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:34,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:34,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:34,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30
[2020-09-25 08:03:34,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:34,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180
[2020-09-25 08:03:34,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:34,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:34,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 08:03:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 08:03:34,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 08:03:34,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:35,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:35,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:35,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:35,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 08:03:35,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:35,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:35,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:35,056 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 08:03:35,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676758177]
[2020-09-25 08:03:35,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:03:35,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-25 08:03:35,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844910652]
[2020-09-25 08:03:35,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-25 08:03:35,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:35,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-25 08:03:35,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2020-09-25 08:03:35,061 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states.
[2020-09-25 08:03:35,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:35,648 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions.
[2020-09-25 08:03:35,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 08:03:35,649 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21
[2020-09-25 08:03:35,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:35,652 INFO L225 Difference]: With dead ends: 91
[2020-09-25 08:03:35,652 INFO L226 Difference]: Without dead ends: 72
[2020-09-25 08:03:35,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342
[2020-09-25 08:03:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-09-25 08:03:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 34.
[2020-09-25 08:03:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2020-09-25 08:03:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions.
[2020-09-25 08:03:35,665 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 21
[2020-09-25 08:03:35,665 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:35,666 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions.
[2020-09-25 08:03:35,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-25 08:03:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions.
[2020-09-25 08:03:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-09-25 08:03:35,667 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:35,667 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]
[2020-09-25 08:03:35,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:03:35,668 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:35,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash -805340680, now seen corresponding path program 1 times
[2020-09-25 08:03:35,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:35,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174854102]
[2020-09-25 08:03:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:35,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:36,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:36,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34
[2020-09-25 08:03:36,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:36,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555
[2020-09-25 08:03:36,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:36,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:36,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-25 08:03:36,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 08:03:36,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-25 08:03:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:36,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:36,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:36,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:36,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:36,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:36,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 08:03:36,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:36,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:36,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:36,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:36,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:36,635 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 08:03:36,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174854102]
[2020-09-25 08:03:36,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:36,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-25 08:03:36,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114795754]
[2020-09-25 08:03:36,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-25 08:03:36,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:36,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-25 08:03:36,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2020-09-25 08:03:36,640 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 13 states.
[2020-09-25 08:03:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:39,491 INFO L93 Difference]: Finished difference Result 87 states and 110 transitions.
[2020-09-25 08:03:39,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2020-09-25 08:03:39,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25
[2020-09-25 08:03:39,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:39,495 INFO L225 Difference]: With dead ends: 87
[2020-09-25 08:03:39,495 INFO L226 Difference]: Without dead ends: 82
[2020-09-25 08:03:39,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506
[2020-09-25 08:03:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2020-09-25 08:03:39,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 37.
[2020-09-25 08:03:39,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-09-25 08:03:39,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions.
[2020-09-25 08:03:39,508 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 25
[2020-09-25 08:03:39,508 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:39,508 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions.
[2020-09-25 08:03:39,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-25 08:03:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions.
[2020-09-25 08:03:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2020-09-25 08:03:39,510 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:39,510 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, 1, 1, 1]
[2020-09-25 08:03:39,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 08:03:39,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:39,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1490056162, now seen corresponding path program 2 times
[2020-09-25 08:03:39,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:39,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733795467]
[2020-09-25 08:03:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:39,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:39,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:39,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:40,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:40,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 08:03:40,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 08:03:40,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 720
[2020-09-25 08:03:40,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:40,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:40,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:03:40,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 08:03:40,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13
[2020-09-25 08:03:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:40,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:40,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:40,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:03:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:40,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:40,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:40,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:03:40,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733795467]
[2020-09-25 08:03:40,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:40,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 08:03:40,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98613537]
[2020-09-25 08:03:40,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:03:40,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:40,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:03:40,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:03:40,395 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states.
[2020-09-25 08:03:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:40,643 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions.
[2020-09-25 08:03:40,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:03:40,644 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29
[2020-09-25 08:03:40,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:40,645 INFO L225 Difference]: With dead ends: 62
[2020-09-25 08:03:40,645 INFO L226 Difference]: Without dead ends: 46
[2020-09-25 08:03:40,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:03:40,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2020-09-25 08:03:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38.
[2020-09-25 08:03:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2020-09-25 08:03:40,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions.
[2020-09-25 08:03:40,659 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 29
[2020-09-25 08:03:40,659 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:40,661 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions.
[2020-09-25 08:03:40,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:03:40,662 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions.
[2020-09-25 08:03:40,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 08:03:40,663 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:40,664 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-09-25 08:03:40,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 08:03:40,664 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:40,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:40,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1369450661, now seen corresponding path program 1 times
[2020-09-25 08:03:40,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:40,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292231208]
[2020-09-25 08:03:40,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:40,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39
[2020-09-25 08:03:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:03:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734
[2020-09-25 08:03:41,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:41,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:03:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 08:03:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 08:03:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:41,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:41,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:41,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:41,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:41,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:03:41,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:41,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:41,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:03:41,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292231208]
[2020-09-25 08:03:41,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:41,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 08:03:41,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246481584]
[2020-09-25 08:03:41,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:03:41,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:41,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:03:41,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:03:41,531 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states.
[2020-09-25 08:03:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:41,669 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions.
[2020-09-25 08:03:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:03:41,670 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30
[2020-09-25 08:03:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:41,671 INFO L225 Difference]: With dead ends: 61
[2020-09-25 08:03:41,671 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 08:03:41,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:03:41,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 08:03:41,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39.
[2020-09-25 08:03:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states.
[2020-09-25 08:03:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions.
[2020-09-25 08:03:41,678 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 30
[2020-09-25 08:03:41,679 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:41,679 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions.
[2020-09-25 08:03:41,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:03:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions.
[2020-09-25 08:03:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-25 08:03:41,680 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:41,681 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-09-25 08:03:41,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 08:03:41,681 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:41,682 INFO L82 PathProgramCache]: Analyzing trace with hash -895592636, now seen corresponding path program 1 times
[2020-09-25 08:03:41,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:41,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941521180]
[2020-09-25 08:03:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:41,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:42,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:42,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-25 08:03:42,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:03:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801
[2020-09-25 08:03:42,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:42,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 08:03:42,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15
[2020-09-25 08:03:42,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:42,681 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 21
[2020-09-25 08:03:42,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:42,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:42,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:42,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:42,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:03:42,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:42,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:42,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:42,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:03:42,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941521180]
[2020-09-25 08:03:42,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:42,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 08:03:42,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628409041]
[2020-09-25 08:03:42,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:03:42,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:42,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:03:42,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:03:42,704 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 5 states.
[2020-09-25 08:03:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:42,876 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions.
[2020-09-25 08:03:42,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:03:42,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31
[2020-09-25 08:03:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:42,878 INFO L225 Difference]: With dead ends: 60
[2020-09-25 08:03:42,878 INFO L226 Difference]: Without dead ends: 44
[2020-09-25 08:03:42,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:03:42,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2020-09-25 08:03:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40.
[2020-09-25 08:03:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-25 08:03:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions.
[2020-09-25 08:03:42,885 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 31
[2020-09-25 08:03:42,885 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:42,885 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions.
[2020-09-25 08:03:42,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:03:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions.
[2020-09-25 08:03:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-25 08:03:42,887 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:42,887 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-09-25 08:03:42,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-09-25 08:03:42,887 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:42,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1939159041, now seen corresponding path program 1 times
[2020-09-25 08:03:42,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:42,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354713516]
[2020-09-25 08:03:42,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:43,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:43,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:43,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 08:03:43,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 08:03:43,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977
[2020-09-25 08:03:43,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:43,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 08:03:43,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 08:03:43,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-25 08:03:43,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:46,018 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 37 DAG size of output: 13
[2020-09-25 08:03:46,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:46,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:46,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:46,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:46,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:03:46,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:46,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:46,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:46,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:03:46,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354713516]
[2020-09-25 08:03:46,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:46,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-25 08:03:46,043 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304938430]
[2020-09-25 08:03:46,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:03:46,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:46,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:03:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:03:46,045 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 5 states.
[2020-09-25 08:03:46,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:46,204 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions.
[2020-09-25 08:03:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:03:46,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32
[2020-09-25 08:03:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:46,206 INFO L225 Difference]: With dead ends: 58
[2020-09-25 08:03:46,206 INFO L226 Difference]: Without dead ends: 42
[2020-09-25 08:03:46,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-25 08:03:46,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-09-25 08:03:46,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41.
[2020-09-25 08:03:46,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2020-09-25 08:03:46,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions.
[2020-09-25 08:03:46,212 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 32
[2020-09-25 08:03:46,212 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:46,213 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions.
[2020-09-25 08:03:46,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:03:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions.
[2020-09-25 08:03:46,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-09-25 08:03:46,214 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:03:46,214 INFO L422 BasicCegarLoop]: trace histogram [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]
[2020-09-25 08:03:46,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-09-25 08:03:46,214 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:03:46,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:03:46,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1240166497, now seen corresponding path program 1 times
[2020-09-25 08:03:46,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:03:46,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339136722]
[2020-09-25 08:03:46,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:03:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:46,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:47,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:47,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 08:03:47,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:47,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805
[2020-09-25 08:03:47,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:47,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 08:03:47,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 08:03:47,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27
[2020-09-25 08:03:47,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:47,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:03:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:03:47,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:03:47,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:03:47,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-25 08:03:47,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:03:47,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-25 08:03:47,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:03:47,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:03:47,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:03:47,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:03:47,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:03:47,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:03:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-09-25 08:03:47,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339136722]
[2020-09-25 08:03:47,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 08:03:47,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-25 08:03:47,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62056850]
[2020-09-25 08:03:47,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-25 08:03:47,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:03:47,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-25 08:03:47,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2020-09-25 08:03:47,424 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand 13 states.
[2020-09-25 08:03:48,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:03:48,071 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions.
[2020-09-25 08:03:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-09-25 08:03:48,072 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32
[2020-09-25 08:03:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:03:48,072 INFO L225 Difference]: With dead ends: 54
[2020-09-25 08:03:48,072 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 08:03:48,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702
[2020-09-25 08:03:48,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 08:03:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 08:03:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 08:03:48,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 08:03:48,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32
[2020-09-25 08:03:48,075 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:03:48,075 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 08:03:48,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-25 08:03:48,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 08:03:48,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 08:03:48,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-09-25 08:03:48,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 08:03:48,402 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45
[2020-09-25 08:03:48,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 08:03:48,406 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|)
[2020-09-25 08:03:48,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 08:03:48,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 08:03:48,407 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 08:03:48,407 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 08:03:48,408 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 08:03:48,408 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed.
[2020-09-25 08:03:48,408 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed.
[2020-09-25 08:03:48,408 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed.
[2020-09-25 08:03:48,408 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L268 CegarLoopResult]: For program point L27(lines 27 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L268 CegarLoopResult]: For program point L27-2(lines 21 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L268 CegarLoopResult]: For program point L23(lines 23 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,409 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 32) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0)))
[2020-09-25 08:03:48,411 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 32) the Hoare annotation is: (let ((.cse12 (+ main_~i~0 main_~k~0)) (.cse10 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0))) (let ((.cse2 (<= .cse10 main_~l~0)) (.cse0 (<= 0 .cse12)) (.cse9 (div .cse10 4294967296)) (.cse8 (div main_~l~0 4294967296)) (.cse3 (<= main_~i~0 0)) (.cse6 (<= 0 main_~i~0)) (.cse1 (+ main_~i~0 main_~j~0 main_~k~0)) (.cse7 (<= .cse12 0))) (or (let ((.cse5 (+ main_~l~0 (* 4294967296 .cse9))) (.cse4 (* 4294967296 .cse8))) (and .cse0 (<= 0 .cse1) .cse2 .cse3 (<= .cse1 0) (<= (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4) .cse5) .cse6 (< .cse5 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 .cse4 1)) .cse7)) (and (<= main_~l~0 .cse10) .cse2) (let ((.cse11 (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0))) (and .cse0 (= (+ main_~l~0 (* .cse9 4294967296)) (+ main_~i~0 main_~j~0 main_~k~0 main_~v3~0 main_~v4~0 (* .cse8 4294967296))) .cse3 (<= main_~l~0 .cse1) (<= main_~l~0 .cse11) .cse6 (<= .cse11 main_~l~0) (<= main_~l~0 0) (<= .cse1 main_~l~0) .cse7 (<= 0 main_~l~0))))))
[2020-09-25 08:03:48,411 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 08:03:48,411 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-25 08:03:48,412 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L25(lines 25 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L21(lines 21 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed.
[2020-09-25 08:03:48,413 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed.
[2020-09-25 08:03:48,414 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed.
[2020-09-25 08:03:48,414 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed.
[2020-09-25 08:03:48,414 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true
[2020-09-25 08:03:48,414 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed.
[2020-09-25 08:03:48,414 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed.
[2020-09-25 08:03:48,414 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-25 08:03:48,415 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-25 08:03:48,415 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true
[2020-09-25 08:03:48,416 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed.
[2020-09-25 08:03:48,416 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-09-25 08:03:48,416 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed.
[2020-09-25 08:03:48,416 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed.
[2020-09-25 08:03:48,417 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed.
[2020-09-25 08:03:48,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:03:48 BoogieIcfgContainer
[2020-09-25 08:03:48,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 08:03:48,466 INFO L168 Benchmark]: Toolchain (without parser) took 15949.50 ms. Allocated memory was 139.5 MB in the beginning and 323.5 MB in the end (delta: 184.0 MB). Free memory was 103.0 MB in the beginning and 97.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 189.9 MB. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,467 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.96 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 92.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,469 INFO L168 Benchmark]: Boogie Preprocessor took 116.48 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 179.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,470 INFO L168 Benchmark]: RCFGBuilder took 399.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.7 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,474 INFO L168 Benchmark]: TraceAbstraction took 15107.38 ms. Allocated memory was 201.9 MB in the beginning and 323.5 MB in the end (delta: 121.6 MB). Free memory was 164.0 MB in the beginning and 97.1 MB in the end (delta: 66.8 MB). Peak memory consumption was 188.5 MB. Max. memory is 7.1 GB.
[2020-09-25 08:03:48,485 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 316.96 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 92.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 116.48 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 92.7 MB in the beginning and 179.8 MB in the end (delta: -87.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 399.02 ms. Allocated memory is still 201.9 MB. Free memory was 179.8 MB in the beginning and 164.7 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 15107.38 ms. Allocated memory was 201.9 MB in the beginning and 323.5 MB in the end (delta: 121.6 MB). Free memory was 164.0 MB in the beginning and 97.1 MB in the end (delta: 66.8 MB). Peak memory consumption was 188.5 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: l <= i + j + k + v3 + v4 && i + j + k + v3 + v4 <= l
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 208 SDtfs, 781 SDslu, 218 SDs, 0 SdLazy, 1001 SolverSat, 113 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 102 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 16 PreInvPairs, 24 NumberOfFragments, 201 HoareAnnotationTreeSize, 16 FomulaSimplifications, 1831 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 49612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 16/27 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...