/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo2.c
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This is Ultimate 0.1.25-d623d84
[2020-07-21 02:11:50,987 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-21 02:11:50,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 02:11:51,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 02:11:51,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 02:11:51,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 02:11:51,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 02:11:51,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 02:11:51,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 02:11:51,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 02:11:51,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 02:11:51,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 02:11:51,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 02:11:51,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 02:11:51,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 02:11:51,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 02:11:51,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 02:11:51,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 02:11:51,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 02:11:51,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 02:11:51,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 02:11:51,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 02:11:51,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 02:11:51,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 02:11:51,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 02:11:51,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 02:11:51,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 02:11:51,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 02:11:51,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 02:11:51,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 02:11:51,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 02:11:51,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 02:11:51,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-21 02:11:51,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-21 02:11:51,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 02:11:51,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 02:11:51,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-21 02:11:51,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-21 02:11:51,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-21 02:11:51,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-21 02:11:51,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 02:11:51,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-21 02:11:51,051 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-21 02:11:51,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 02:11:51,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 02:11:51,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-21 02:11:51,053 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-21 02:11:51,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 02:11:51,054 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-21 02:11:51,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-21 02:11:51,054 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-21 02:11:51,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-21 02:11:51,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 02:11:51,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 02:11:51,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 02:11:51,055 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-21 02:11:51,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-21 02:11:51,055 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-21 02:11:51,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-21 02:11:51,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 02:11:51,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-21 02:11:51,056 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-21 02:11:51,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-21 02:11:51,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 02:11:51,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 02:11:51,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 02:11:51,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 02:11:51,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-21 02:11:51,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:51,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 02:11:51,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-21 02:11:51,058 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 -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-21 02:11:51,364 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 02:11:51,378 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 02:11:51,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 02:11:51,383 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-21 02:11:51,384 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-21 02:11:51,385 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo2.c
[2020-07-21 02:11:51,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bce427a7/95c67c9024bf4e8facde11584e79df60/FLAGd38de5061
[2020-07-21 02:11:51,902 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-21 02:11:51,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo2.c
[2020-07-21 02:11:51,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bce427a7/95c67c9024bf4e8facde11584e79df60/FLAGd38de5061
[2020-07-21 02:11:52,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bce427a7/95c67c9024bf4e8facde11584e79df60
[2020-07-21 02:11:52,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 02:11:52,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 02:11:52,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 02:11:52,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 02:11:52,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 02:11:52,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d61c383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52, skipping insertion in model container
[2020-07-21 02:11:52,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-21 02:11:52,322 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-21 02:11:52,509 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 02:11:52,513 INFO L203 MainTranslator]: Completed pre-run
[2020-07-21 02:11:52,531 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 02:11:52,545 INFO L208 MainTranslator]: Completed translation
[2020-07-21 02:11:52,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52 WrapperNode
[2020-07-21 02:11:52,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 02:11:52,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 02:11:52,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 02:11:52,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 02:11:52,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
[2020-07-21 02:11:52,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 02:11:52,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 02:11:52,655 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 02:11:52,656 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-21 02:11:52,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (1/1) ...
No working directory specified, using /storage/repos/ultimate/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
[2020-07-21 02:11:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 02:11:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 02:11:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-21 02:11:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-21 02:11:52,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 02:11:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 02:11:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-21 02:11:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-07-21 02:11:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-21 02:11:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-21 02:11:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-21 02:11:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 02:11:52,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 02:11:52,904 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 02:11:52,904 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-21 02:11:52,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:11:52 BoogieIcfgContainer
[2020-07-21 02:11:52,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 02:11:52,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 02:11:52,909 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 02:11:52,912 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-21 02:11:52,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:11:52" (1/3) ...
[2020-07-21 02:11:52,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f34ea24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:11:52, skipping insertion in model container
[2020-07-21 02:11:52,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:11:52" (2/3) ...
[2020-07-21 02:11:52,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f34ea24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:11:52, skipping insertion in model container
[2020-07-21 02:11:52,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:11:52" (3/3) ...
[2020-07-21 02:11:52,916 INFO L109 eAbstractionObserver]: Analyzing ICFG geo2.c
[2020-07-21 02:11:52,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 02:11:52,934 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 02:11:52,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 02:11:52,971 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-21 02:11:52,971 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-21 02:11:52,972 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 02:11:52,972 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 02:11:52,972 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 02:11:52,972 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-21 02:11:52,972 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 02:11:52,972 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 02:11:52,991 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states.
[2020-07-21 02:11:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-07-21 02:11:52,997 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 02:11:52,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 02:11:52,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 02:11:53,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 02:11:53,005 INFO L82 PathProgramCache]: Analyzing trace with hash -64610451, now seen corresponding path program 1 times
[2020-07-21 02:11:53,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 02:11:53,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933898016]
[2020-07-21 02:11:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:53,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s)
[2020-07-21 02:11:53,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 02:11:53,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core
[2020-07-21 02:11:53,087 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 02:11:53,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 02:11:53,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 02:11:53,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933898016]
[2020-07-21 02:11:53,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 02:11:53,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-21 02:11:53,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347879851]
[2020-07-21 02:11:53,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-21 02:11:53,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 02:11:53,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-21 02:11:53,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 02:11:53,154 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states.
[2020-07-21 02:11:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 02:11:53,180 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions.
[2020-07-21 02:11:53,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-07-21 02:11:53,181 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2020-07-21 02:11:53,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 02:11:53,192 INFO L225 Difference]: With dead ends: 35
[2020-07-21 02:11:53,192 INFO L226 Difference]: Without dead ends: 15
[2020-07-21 02:11:53,196 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-21 02:11:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2020-07-21 02:11:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2020-07-21 02:11:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2020-07-21 02:11:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions.
[2020-07-21 02:11:53,241 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10
[2020-07-21 02:11:53,242 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-21 02:11:53,242 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions.
[2020-07-21 02:11:53,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-21 02:11:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions.
[2020-07-21 02:11:53,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-07-21 02:11:53,243 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 02:11:53,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 02:11:53,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:53,457 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 02:11:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 02:11:53,458 INFO L82 PathProgramCache]: Analyzing trace with hash -62822991, now seen corresponding path program 1 times
[2020-07-21 02:11:53,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 02:11:53,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237570538]
[2020-07-21 02:11:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:53,494 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s)
[2020-07-21 02:11:53,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 02:11:53,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-07-21 02:11:53,498 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 02:11:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 02:11:53,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2020-07-21 02:11:53,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237570538]
[2020-07-21 02:11:53,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-21 02:11:53,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-21 02:11:53,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496347938]
[2020-07-21 02:11:53,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-21 02:11:53,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 02:11:53,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-21 02:11:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-07-21 02:11:53,609 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states.
[2020-07-21 02:11:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 02:11:53,676 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions.
[2020-07-21 02:11:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-07-21 02:11:53,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-07-21 02:11:53,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 02:11:53,679 INFO L225 Difference]: With dead ends: 25
[2020-07-21 02:11:53,679 INFO L226 Difference]: Without dead ends: 22
[2020-07-21 02:11:53,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-07-21 02:11:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2020-07-21 02:11:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2020-07-21 02:11:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2020-07-21 02:11:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2020-07-21 02:11:53,689 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10
[2020-07-21 02:11:53,689 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-21 02:11:53,690 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions.
[2020-07-21 02:11:53,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-21 02:11:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions.
[2020-07-21 02:11:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-07-21 02:11:53,691 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 02:11:53,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 02:11:53,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:53,906 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 02:11:53,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 02:11:53,907 INFO L82 PathProgramCache]: Analyzing trace with hash 50868238, now seen corresponding path program 1 times
[2020-07-21 02:11:53,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 02:11:53,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284728638]
[2020-07-21 02:11:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:11:53,966 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 02:11:53,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 02:11:53,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-07-21 02:11:53,971 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 02:11:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 02:11:54,075 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 02:11:54,106 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 02:12:00,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-21 02:12:00,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284728638]
[2020-07-21 02:12:00,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-21 02:12:00,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2020-07-21 02:12:00,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337779067]
[2020-07-21 02:12:00,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-07-21 02:12:00,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 02:12:00,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-07-21 02:12:00,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=38, Unknown=3, NotChecked=0, Total=56
[2020-07-21 02:12:00,366 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states.
[2020-07-21 02:12:07,053 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 13
[2020-07-21 02:12:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 02:12:17,325 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions.
[2020-07-21 02:12:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-07-21 02:12:17,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17
[2020-07-21 02:12:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 02:12:17,329 INFO L225 Difference]: With dead ends: 32
[2020-07-21 02:12:17,330 INFO L226 Difference]: Without dead ends: 29
[2020-07-21 02:12:17,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=23, Invalid=63, Unknown=4, NotChecked=0, Total=90
[2020-07-21 02:12:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2020-07-21 02:12:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2020-07-21 02:12:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states.
[2020-07-21 02:12:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions.
[2020-07-21 02:12:17,349 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17
[2020-07-21 02:12:17,350 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-21 02:12:17,351 INFO L479 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions.
[2020-07-21 02:12:17,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-07-21 02:12:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions.
[2020-07-21 02:12:17,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-07-21 02:12:17,353 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 02:12:17,353 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 02:12:17,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:12:17,554 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 02:12:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 02:12:17,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1538749201, now seen corresponding path program 2 times
[2020-07-21 02:12:17,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 02:12:17,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203285914]
[2020-07-21 02:12:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:12:17,606 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 02:12:17,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 02:12:17,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core
[2020-07-21 02:12:17,610 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 02:12:22,259 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 13
[2020-07-21 02:12:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-07-21 02:12:22,382 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 02:12:22,432 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 02:12:35,253 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 9
[2020-07-21 02:12:35,483 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-07-21 02:12:35,488 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term
[2020-07-21 02:12:35,488 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 02:12:37,549 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~x~0 c_main_~z~0))) (or (= (+ c_main_~z~0 (* c_main_~x~0 c_main_~z~0 c_main_~z~0)) (+ .cse0 (* c_main_~y~0 c_main_~z~0 c_main_~z~0))) (not (= (+ .cse0 1) (+ (* c_main_~y~0 c_main_~z~0) c_main_~x~0))))) is different from true
[2020-07-21 02:12:37,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-21 02:12:37,564 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-21 02:12:40,138 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~x~0 c_main_~z~0 c_main_~z~0))) (or (not (= (+ (* c_main_~x~0 c_main_~z~0) (* c_main_~y~0 c_main_~z~0 c_main_~z~0)) (+ c_main_~z~0 .cse0))) (= (+ .cse0 (* c_main_~y~0 c_main_~z~0 c_main_~z~0 c_main_~z~0)) (+ (* c_main_~z~0 c_main_~z~0) (* c_main_~x~0 c_main_~z~0 c_main_~z~0 c_main_~z~0))))) is different from true
[2020-07-21 02:12:40,155 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts
[2020-07-21 02:12:40,173 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 7 not checked.
[2020-07-21 02:12:40,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203285914]
[2020-07-21 02:12:40,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-07-21 02:12:40,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15
[2020-07-21 02:12:40,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534079185]
[2020-07-21 02:12:40,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-07-21 02:12:40,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 02:12:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-07-21 02:12:40,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=120, Unknown=9, NotChecked=46, Total=210
[2020-07-21 02:12:40,176 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 15 states.
[2020-07-21 02:13:02,790 WARN L193 SmtUtils]: Spent 15.66 s on a formula simplification. DAG size of input: 20 DAG size of output: 18
[2020-07-21 02:13:11,276 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 14
[2020-07-21 02:13:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 02:13:27,343 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions.
[2020-07-21 02:13:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-07-21 02:13:27,345 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24
[2020-07-21 02:13:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 02:13:27,347 INFO L225 Difference]: With dead ends: 39
[2020-07-21 02:13:27,347 INFO L226 Difference]: Without dead ends: 35
[2020-07-21 02:13:27,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=58, Invalid=211, Unknown=11, NotChecked=62, Total=342
[2020-07-21 02:13:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states.
[2020-07-21 02:13:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34.
[2020-07-21 02:13:27,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2020-07-21 02:13:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions.
[2020-07-21 02:13:27,358 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24
[2020-07-21 02:13:27,358 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-21 02:13:27,358 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions.
[2020-07-21 02:13:27,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-07-21 02:13:27,358 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions.
[2020-07-21 02:13:27,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-07-21 02:13:27,359 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 02:13:27,360 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 02:13:27,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:13:27,575 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 02:13:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 02:13:27,576 INFO L82 PathProgramCache]: Analyzing trace with hash -695576914, now seen corresponding path program 3 times
[2020-07-21 02:13:27,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 02:13:27,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332399150]
[2020-07-21 02:13:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:13:27,619 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 02:13:27,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2020-07-21 02:13:27,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 18 conjunts are in the unsatisfiable core
[2020-07-21 02:13:27,625 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2020-07-21 02:13:27,770 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 9
[2020-07-21 02:13:30,599 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-21 02:13:53,794 WARN L193 SmtUtils]: Spent 9.44 s on a formula simplification that was a NOOP. DAG size: 23
[2020-07-21 02:13:53,797 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-21 02:14:25,803 WARN L193 SmtUtils]: Spent 13.86 s on a formula simplification that was a NOOP. DAG size: 23
[2020-07-21 02:14:27,848 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-07-21 02:14:36,140 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_main_~y~0_20 Int) (v_main_~z~0_BEFORE_CALL_8 Int) (v_main_~x~0_19 Int)) (let ((.cse0 (* v_main_~z~0_BEFORE_CALL_8 v_main_~x~0_19))) (and (= (+ .cse0 1) (+ v_main_~x~0_19 (* v_main_~y~0_20 v_main_~z~0_BEFORE_CALL_8))) (not (= (+ (* v_main_~z~0_BEFORE_CALL_8 v_main_~z~0_BEFORE_CALL_8 v_main_~x~0_19) v_main_~z~0_BEFORE_CALL_8) (+ .cse0 (* v_main_~y~0_20 v_main_~z~0_BEFORE_CALL_8 v_main_~z~0_BEFORE_CALL_8))))))) is different from false
[2020-07-21 02:14:38,153 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_main_~y~0_20 Int) (v_main_~z~0_BEFORE_CALL_8 Int) (v_main_~x~0_19 Int)) (let ((.cse0 (* v_main_~z~0_BEFORE_CALL_8 v_main_~x~0_19))) (and (= (+ .cse0 1) (+ v_main_~x~0_19 (* v_main_~y~0_20 v_main_~z~0_BEFORE_CALL_8))) (not (= (+ (* v_main_~z~0_BEFORE_CALL_8 v_main_~z~0_BEFORE_CALL_8 v_main_~x~0_19) v_main_~z~0_BEFORE_CALL_8) (+ .cse0 (* v_main_~y~0_20 v_main_~z~0_BEFORE_CALL_8 v_main_~z~0_BEFORE_CALL_8))))))) is different from true
[2020-07-21 02:14:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-07-21 02:14:38,157 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2020-07-21 02:14:46,027 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 02:14:55,431 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 9
[2020-07-21 02:14:55,625 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-07-21 02:14:57,822 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 20
[2020-07-21 02:14:57,825 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term
[2020-07-21 02:14:57,825 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts
[2020-07-21 02:14:59,903 WARN L860 $PredicateComparison]: unable to prove that (forall ((main_~x~0 Int) (main_~y~0 Int)) (let ((.cse0 (* main_~x~0 c_main_~z~0))) (or (= (+ .cse0 (* main_~y~0 c_main_~z~0 c_main_~z~0)) (+ c_main_~z~0 (* main_~x~0 c_main_~z~0 c_main_~z~0))) (not (= (+ .cse0 1) (+ (* main_~y~0 c_main_~z~0) main_~x~0)))))) is different from true
[2020-07-21 02:14:59,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332399150]
[2020-07-21 02:14:59,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-07-21 02:14:59,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2020-07-21 02:14:59,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516222361]
[2020-07-21 02:14:59,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-07-21 02:14:59,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-21 02:14:59,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-07-21 02:14:59,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=99, Unknown=13, NotChecked=42, Total=182
[2020-07-21 02:14:59,907 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states.
[2020-07-21 02:15:03,625 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 11
[2020-07-21 02:15:14,670 WARN L193 SmtUtils]: Spent 8.28 s on a formula simplification. DAG size of input: 32 DAG size of output: 6
[2020-07-21 02:17:01,225 WARN L193 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 30 DAG size of output: 28
[2020-07-21 02:17:03,293 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_main_~y~0_20 Int) (v_main_~x~0_19 Int)) (let ((.cse0 (* v_main_~y~0_20 c_main_~z~0)) (.cse1 (+ (* c_main_~z~0 v_main_~x~0_19) 1))) (and (= .cse0 c_main_~y~0) (= .cse1 (+ .cse0 v_main_~x~0_19)) (= .cse1 c_main_~x~0)))) (= (+ (* c_main_~x~0 c_main_~z~0) 1) (+ (* c_main_~y~0 c_main_~z~0) c_main_~x~0))) is different from false
[2020-07-21 02:17:05,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-21 02:17:05,322 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions.
[2020-07-21 02:17:05,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-07-21 02:17:05,363 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31
[2020-07-21 02:17:05,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-21 02:17:05,363 INFO L225 Difference]: With dead ends: 34
[2020-07-21 02:17:05,364 INFO L226 Difference]: Without dead ends: 0
[2020-07-21 02:17:05,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 184.1s TimeCoverageRelationStatistics Valid=48, Invalid=154, Unknown=20, NotChecked=84, Total=306
[2020-07-21 02:17:05,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-07-21 02:17:05,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-07-21 02:17:05,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-07-21 02:17:05,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-07-21 02:17:05,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31
[2020-07-21 02:17:05,366 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-21 02:17:05,366 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-07-21 02:17:05,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-07-21 02:17:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-07-21 02:17:05,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-21 02:17:05,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 02:17:05,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-07-21 02:17:08,639 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 24 DAG size of output: 19
[2020-07-21 02:17:43,016 WARN L193 SmtUtils]: Spent 34.37 s on a formula simplification. DAG size of input: 30 DAG size of output: 1
[2020-07-21 02:17:46,467 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 24 DAG size of output: 19
[2020-07-21 02:17:46,469 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-07-21 02:17:46,470 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-07-21 02:17:46,470 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 9 11) no Hoare annotation was computed.
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed.
[2020-07-21 02:17:46,470 INFO L268 CegarLoopResult]: For program point L10-2(lines 9 11) no Hoare annotation was computed.
[2020-07-21 02:17:46,471 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed.
[2020-07-21 02:17:46,471 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (or (exists ((v_main_~y~0_20 Int) (v_main_~x~0_19 Int)) (let ((.cse0 (* v_main_~y~0_20 main_~z~0)) (.cse1 (+ (* main_~z~0 v_main_~x~0_19) 1))) (and (= .cse0 main_~y~0) (= .cse1 (+ .cse0 v_main_~x~0_19)) (= .cse1 main_~x~0)))) (and (= 1 main_~x~0) (= 1 main_~y~0)))
[2020-07-21 02:17:46,471 INFO L268 CegarLoopResult]: For program point L32-1(lines 31 40) no Hoare annotation was computed.
[2020-07-21 02:17:46,471 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 21 43) the Hoare annotation is: true
[2020-07-21 02:17:46,471 INFO L264 CegarLoopResult]: At program point L31-2(lines 31 40) the Hoare annotation is: (or (exists ((v_main_~y~0_20 Int) (v_main_~x~0_19 Int)) (let ((.cse0 (* v_main_~y~0_20 main_~z~0)) (.cse1 (+ (* main_~z~0 v_main_~x~0_19) 1))) (and (= .cse0 main_~y~0) (= .cse1 (+ .cse0 v_main_~x~0_19)) (= .cse1 main_~x~0)))) (and (= 1 main_~x~0) (= 1 main_~y~0)))
[2020-07-21 02:17:46,472 INFO L264 CegarLoopResult]: At program point L31-3(lines 31 40) the Hoare annotation is: (= (+ (* main_~x~0 main_~z~0) 1) (+ main_~x~0 (* main_~y~0 main_~z~0)))
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 21 43) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 21 43) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 12 18) the Hoare annotation is: true
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point L14(lines 14 15) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point L13(lines 13 16) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point L13-2(lines 12 18) no Hoare annotation was computed.
[2020-07-21 02:17:46,472 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 12 18) no Hoare annotation was computed.
[2020-07-21 02:17:46,473 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed.
[2020-07-21 02:17:46,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:17:46 BoogieIcfgContainer
[2020-07-21 02:17:46,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 02:17:46,495 INFO L168 Benchmark]: Toolchain (without parser) took 354211.89 ms. Allocated memory was 142.1 MB in the beginning and 252.2 MB in the end (delta: 110.1 MB). Free memory was 99.5 MB in the beginning and 212.2 MB in the end (delta: -112.7 MB). Peak memory consumption was 110.3 MB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,497 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.79 ms. Allocated memory is still 142.1 MB. Free memory was 99.1 MB in the beginning and 89.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,498 INFO L168 Benchmark]: Boogie Preprocessor took 108.02 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 89.6 MB in the beginning and 179.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,499 INFO L168 Benchmark]: RCFGBuilder took 252.55 ms. Allocated memory is still 199.8 MB. Free memory was 179.8 MB in the beginning and 166.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,500 INFO L168 Benchmark]: TraceAbstraction took 353583.81 ms. Allocated memory was 199.8 MB in the beginning and 252.2 MB in the end (delta: 52.4 MB). Free memory was 165.6 MB in the beginning and 212.2 MB in the end (delta: -46.6 MB). Peak memory consumption was 118.7 MB. Max. memory is 7.1 GB.
[2020-07-21 02:17:46,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 142.1 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 259.79 ms. Allocated memory is still 142.1 MB. Free memory was 99.1 MB in the beginning and 89.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 108.02 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 89.6 MB in the beginning and 179.8 MB in the end (delta: -90.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 252.55 ms. Allocated memory is still 199.8 MB. Free memory was 179.8 MB in the beginning and 166.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 353583.81 ms. Allocated memory was 199.8 MB in the beginning and 252.2 MB in the end (delta: 52.4 MB). Free memory was 165.6 MB in the beginning and 212.2 MB in the end (delta: -46.6 MB). Peak memory consumption was 118.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
- GenericResult: Unfinished Backtranslation
Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 15]: 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: 31]: Loop Invariant
[2020-07-21 02:17:46,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,519 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_20,QUANTIFIED]
[2020-07-21 02:17:46,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
[2020-07-21 02:17:46,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_19,QUANTIFIED]
Derived loop invariant: (\exists v_main_~y~0_20 : int, v_main_~x~0_19 : int :: (v_main_~y~0_20 * z == y && z * v_main_~x~0_19 + 1 == v_main_~y~0_20 * z + v_main_~x~0_19) && z * v_main_~x~0_19 + 1 == x) || (1 == x && 1 == y)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 312.6s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 189.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 40.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 74 SDtfs, 48 SDslu, 253 SDs, 0 SdLazy, 152 SolverSat, 25 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 46.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 98 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 241.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=4, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 17 PreInvPairs, 29 NumberOfFragments, 82 HoareAnnotationTreeSize, 17 FomulaSimplifications, 341 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 105 FormulaSimplificationTreeSizeReductionInter, 40.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 121.3s InterpolantComputationTime, 92 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 126 ConstructedInterpolants, 5 QuantifiedInterpolants, 16592 SizeOfPredicates, 13 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 42/71 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...