/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound1.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-a47f07a
[2021-04-16 02:11:05,307 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-04-16 02:11:05,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-04-16 02:11:05,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-04-16 02:11:05,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-04-16 02:11:05,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-04-16 02:11:05,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-04-16 02:11:05,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-04-16 02:11:05,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-04-16 02:11:05,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-04-16 02:11:05,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-04-16 02:11:05,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-04-16 02:11:05,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-04-16 02:11:05,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-04-16 02:11:05,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-04-16 02:11:05,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-04-16 02:11:05,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-04-16 02:11:05,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-04-16 02:11:05,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-04-16 02:11:05,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-04-16 02:11:05,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-04-16 02:11:05,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-04-16 02:11:05,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-04-16 02:11:05,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-04-16 02:11:05,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-04-16 02:11:05,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-04-16 02:11:05,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-04-16 02:11:05,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-04-16 02:11:05,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-04-16 02:11:05,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-04-16 02:11:05,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-04-16 02:11:05,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-04-16 02:11:05,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-04-16 02:11:05,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-04-16 02:11:05,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-04-16 02:11:05,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-04-16 02:11:05,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-04-16 02:11:05,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-04-16 02:11:05,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-04-16 02:11:05,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-04-16 02:11:05,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-04-16 02:11:05,349 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
[2021-04-16 02:11:05,362 INFO L113 SettingsManager]: Loading preferences was successful
[2021-04-16 02:11:05,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-04-16 02:11:05,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-04-16 02:11:05,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-04-16 02:11:05,363 INFO L138 SettingsManager]: * Use SBE=true
[2021-04-16 02:11:05,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * sizeof long=4
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * sizeof long double=12
[2021-04-16 02:11:05,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-04-16 02:11:05,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-04-16 02:11:05,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-04-16 02:11:05,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-04-16 02:11:05,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-04-16 02:11:05,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-04-16 02:11:05,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-04-16 02:11:05,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-04-16 02:11:05,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-04-16 02:11:05,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-04-16 02:11:05,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-04-16 02:11:05,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-04-16 02:11:05,640 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-04-16 02:11:05,640 INFO L275 PluginConnector]: CDTParser initialized
[2021-04-16 02:11:05,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound1.c
[2021-04-16 02:11:05,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875ce3945/2769d3f649f849089b3e49e0a7db6a59/FLAGbf092a0da
[2021-04-16 02:11:06,083 INFO L306 CDTParser]: Found 1 translation units.
[2021-04-16 02:11:06,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound1.c
[2021-04-16 02:11:06,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875ce3945/2769d3f649f849089b3e49e0a7db6a59/FLAGbf092a0da
[2021-04-16 02:11:06,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/875ce3945/2769d3f649f849089b3e49e0a7db6a59
[2021-04-16 02:11:06,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-04-16 02:11:06,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-04-16 02:11:06,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-04-16 02:11:06,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-04-16 02:11:06,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-04-16 02:11:06,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6bbfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06, skipping insertion in model container
[2021-04-16 02:11:06,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-04-16 02:11:06,120 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-04-16 02:11:06,234 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537]
[2021-04-16 02:11:06,261 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-04-16 02:11:06,268 INFO L203 MainTranslator]: Completed pre-run
[2021-04-16 02:11:06,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/prod4br-ll_unwindbound1.c[524,537]
[2021-04-16 02:11:06,329 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-04-16 02:11:06,338 INFO L208 MainTranslator]: Completed translation
[2021-04-16 02:11:06,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06 WrapperNode
[2021-04-16 02:11:06,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-04-16 02:11:06,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-04-16 02:11:06,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-04-16 02:11:06,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-04-16 02:11:06,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (1/1) ...
[2021-04-16 02:11:06,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-04-16 02:11:06,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-04-16 02:11:06,379 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-04-16 02:11:06,379 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-04-16 02:11:06,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (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
[2021-04-16 02:11:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-04-16 02:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-04-16 02:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-04-16 02:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-04-16 02:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-04-16 02:11:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-04-16 02:11:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-04-16 02:11:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-04-16 02:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-04-16 02:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-04-16 02:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-04-16 02:11:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-04-16 02:11:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-04-16 02:11:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-04-16 02:11:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-04-16 02:11:06,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-04-16 02:11:06,642 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-04-16 02:11:06,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 02:11:06 BoogieIcfgContainer
[2021-04-16 02:11:06,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-04-16 02:11:06,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-04-16 02:11:06,644 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-04-16 02:11:06,646 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-04-16 02:11:06,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 02:11:06" (1/3) ...
[2021-04-16 02:11:06,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf64fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 02:11:06, skipping insertion in model container
[2021-04-16 02:11:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:11:06" (2/3) ...
[2021-04-16 02:11:06,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf64fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 02:11:06, skipping insertion in model container
[2021-04-16 02:11:06,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 02:11:06" (3/3) ...
[2021-04-16 02:11:06,648 INFO L111 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound1.c
[2021-04-16 02:11:06,652 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-04-16 02:11:06,655 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-04-16 02:11:06,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-04-16 02:11:06,696 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-04-16 02:11:06,696 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-04-16 02:11:06,696 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-04-16 02:11:06,697 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-04-16 02:11:06,697 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-04-16 02:11:06,697 INFO L381 AbstractCegarLoop]: Difference is false
[2021-04-16 02:11:06,697 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-04-16 02:11:06,697 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-04-16 02:11:06,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2021-04-16 02:11:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-04-16 02:11:06,724 INFO L511 BasicCegarLoop]: Found error trace
[2021-04-16 02:11:06,725 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-04-16 02:11:06,725 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-04-16 02:11:06,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-04-16 02:11:06,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1717894843, now seen corresponding path program 1 times
[2021-04-16 02:11:06,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-04-16 02:11:06,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186985144]
[2021-04-16 02:11:06,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-04-16 02:11:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:06,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:06,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:06,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:06,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-04-16 02:11:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:06,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:06,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:06,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-04-16 02:11:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:06,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:06,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:06,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:06,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-04-16 02:11:06,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186985144]
[2021-04-16 02:11:06,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-04-16 02:11:06,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-04-16 02:11:06,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649289301]
[2021-04-16 02:11:06,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-04-16 02:11:06,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-04-16 02:11:06,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-04-16 02:11:06,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-04-16 02:11:06,921 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-04-16 02:11:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-04-16 02:11:06,987 INFO L93 Difference]: Finished difference Result 56 states and 77 transitions.
[2021-04-16 02:11:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-04-16 02:11:06,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17
[2021-04-16 02:11:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-04-16 02:11:06,993 INFO L225 Difference]: With dead ends: 56
[2021-04-16 02:11:06,994 INFO L226 Difference]: Without dead ends: 28
[2021-04-16 02:11:06,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-04-16 02:11:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2021-04-16 02:11:07,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27.
[2021-04-16 02:11:07,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-04-16 02:11:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions.
[2021-04-16 02:11:07,020 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 33 transitions. Word has length 17
[2021-04-16 02:11:07,020 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-04-16 02:11:07,020 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 33 transitions.
[2021-04-16 02:11:07,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-04-16 02:11:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions.
[2021-04-16 02:11:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-04-16 02:11:07,021 INFO L511 BasicCegarLoop]: Found error trace
[2021-04-16 02:11:07,022 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-04-16 02:11:07,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-04-16 02:11:07,022 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-04-16 02:11:07,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-04-16 02:11:07,023 INFO L82 PathProgramCache]: Analyzing trace with hash 444281082, now seen corresponding path program 1 times
[2021-04-16 02:11:07,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-04-16 02:11:07,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203464904]
[2021-04-16 02:11:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-04-16 02:11:07,037 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-04-16 02:11:07,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094035261]
[2021-04-16 02:11:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:07,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-04-16 02:11:07,138 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-04-16 02:11:07,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,185 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:07,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12
[2021-04-16 02:11:07,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,190 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,191 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:07,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12
[2021-04-16 02:11:07,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-04-16 02:11:07,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,234 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:07,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:07,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,237 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:07,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,246 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size
[2021-04-16 02:11:07,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-04-16 02:11:07,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203464904]
[2021-04-16 02:11:07,255 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-04-16 02:11:07,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094035261]
[2021-04-16 02:11:07,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-04-16 02:11:07,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-04-16 02:11:07,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079443063]
[2021-04-16 02:11:07,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-04-16 02:11:07,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-04-16 02:11:07,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-04-16 02:11:07,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-04-16 02:11:07,257 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-04-16 02:11:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-04-16 02:11:07,267 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions.
[2021-04-16 02:11:07,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-04-16 02:11:07,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18
[2021-04-16 02:11:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-04-16 02:11:07,268 INFO L225 Difference]: With dead ends: 37
[2021-04-16 02:11:07,268 INFO L226 Difference]: Without dead ends: 29
[2021-04-16 02:11:07,269 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-04-16 02:11:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2021-04-16 02:11:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2021-04-16 02:11:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-04-16 02:11:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions.
[2021-04-16 02:11:07,274 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 18
[2021-04-16 02:11:07,274 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-04-16 02:11:07,274 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions.
[2021-04-16 02:11:07,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2021-04-16 02:11:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions.
[2021-04-16 02:11:07,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-04-16 02:11:07,274 INFO L511 BasicCegarLoop]: Found error trace
[2021-04-16 02:11:07,274 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-04-16 02:11:07,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2021-04-16 02:11:07,489 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-04-16 02:11:07,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-04-16 02:11:07,490 INFO L82 PathProgramCache]: Analyzing trace with hash 446068542, now seen corresponding path program 1 times
[2021-04-16 02:11:07,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-04-16 02:11:07,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214919335]
[2021-04-16 02:11:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-04-16 02:11:07,500 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-04-16 02:11:07,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681542908]
[2021-04-16 02:11:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:07,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-04-16 02:11:07,566 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-04-16 02:11:07,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:07,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:07,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-04-16 02:11:07,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-04-16 02:11:07,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-04-16 02:11:07,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,672 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:07,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,676 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:07,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:07,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:07,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:07,702 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size
[2021-04-16 02:11:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:07,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-04-16 02:11:07,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214919335]
[2021-04-16 02:11:07,705 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-04-16 02:11:07,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681542908]
[2021-04-16 02:11:07,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-04-16 02:11:07,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-04-16 02:11:07,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676545778]
[2021-04-16 02:11:07,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-04-16 02:11:07,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-04-16 02:11:07,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-04-16 02:11:07,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2021-04-16 02:11:07,706 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-04-16 02:11:07,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-04-16 02:11:07,826 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions.
[2021-04-16 02:11:07,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-04-16 02:11:07,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18
[2021-04-16 02:11:07,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-04-16 02:11:07,828 INFO L225 Difference]: With dead ends: 42
[2021-04-16 02:11:07,828 INFO L226 Difference]: Without dead ends: 40
[2021-04-16 02:11:07,829 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.5ms TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2021-04-16 02:11:07,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2021-04-16 02:11:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34.
[2021-04-16 02:11:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5)
[2021-04-16 02:11:07,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions.
[2021-04-16 02:11:07,842 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 18
[2021-04-16 02:11:07,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-04-16 02:11:07,842 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions.
[2021-04-16 02:11:07,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-04-16 02:11:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions.
[2021-04-16 02:11:07,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-04-16 02:11:07,843 INFO L511 BasicCegarLoop]: Found error trace
[2021-04-16 02:11:07,844 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-04-16 02:11:08,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:08,057 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-04-16 02:11:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-04-16 02:11:08,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1308579644, now seen corresponding path program 1 times
[2021-04-16 02:11:08,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-04-16 02:11:08,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118563653]
[2021-04-16 02:11:08,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-04-16 02:11:08,071 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-04-16 02:11:08,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264649563]
[2021-04-16 02:11:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-04-16 02:11:08,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 19 conjunts are in the unsatisfiable core
[2021-04-16 02:11:08,113 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-04-16 02:11:08,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:08,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-04-16 02:11:08,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-04-16 02:11:08,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-04-16 02:11:08,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,171 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:08,171 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-04-16 02:11:08,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,174 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:08,174 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-04-16 02:11:08,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:08,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-04-16 02:11:08,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27
[2021-04-16 02:11:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,196 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21
[2021-04-16 02:11:08,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29
[2021-04-16 02:11:08,199 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.7 percent of original size
[2021-04-16 02:11:08,204 INFO L147 QuantifierPusher]: treesize reduction 8, result has 88.4 percent of original size 61
[2021-04-16 02:11:08,205 INFO L142 QuantifierPusher]: treesize reduction 8, result has 88.4 percent of original size
[2021-04-16 02:11:08,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61
[2021-04-16 02:11:08,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55
[2021-04-16 02:11:08,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,273 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52
[2021-04-16 02:11:08,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57
[2021-04-16 02:11:08,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,278 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,281 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2021-04-16 02:11:08,290 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,291 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,293 INFO L142 QuantifierPusher]: treesize reduction 11, result has 80.7 percent of original size
[2021-04-16 02:11:08,296 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31
[2021-04-16 02:11:08,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42
[2021-04-16 02:11:08,303 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49
[2021-04-16 02:11:08,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50
[2021-04-16 02:11:08,309 INFO L725 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2021-04-16 02:11:08,310 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,310 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,313 INFO L142 QuantifierPusher]: treesize reduction 11, result has 82.5 percent of original size
[2021-04-16 02:11:08,317 INFO L147 QuantifierPusher]: treesize reduction 27, result has 15.6 percent of original size 5
[2021-04-16 02:11:08,318 INFO L147 QuantifierPusher]: treesize reduction 27, result has 25.0 percent of original size 9
[2021-04-16 02:11:08,319 INFO L142 QuantifierPusher]: treesize reduction 27, result has 25.0 percent of original size
[2021-04-16 02:11:08,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-04-16 02:11:08,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,338 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:08,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,340 WARN L159 QuantifierPusher]: Ignoring assumption.
[2021-04-16 02:11:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-04-16 02:11:08,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-04-16 02:11:08,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-04-16 02:11:08,361 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size
[2021-04-16 02:11:08,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-04-16 02:11:08,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-04-16 02:11:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-04-16 02:11:08,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118563653]
[2021-04-16 02:11:08,363 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-04-16 02:11:08,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264649563]
[2021-04-16 02:11:08,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-04-16 02:11:08,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2021-04-16 02:11:08,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661865034]
[2021-04-16 02:11:08,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-04-16 02:11:08,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-04-16 02:11:08,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-04-16 02:11:08,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-04-16 02:11:08,366 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2021-04-16 02:11:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-04-16 02:11:08,624 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions.
[2021-04-16 02:11:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-04-16 02:11:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2021-04-16 02:11:08,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-04-16 02:11:08,627 INFO L225 Difference]: With dead ends: 51
[2021-04-16 02:11:08,627 INFO L226 Difference]: Without dead ends: 43
[2021-04-16 02:11:08,628 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 198.4ms TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306
[2021-04-16 02:11:08,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2021-04-16 02:11:08,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40.
[2021-04-16 02:11:08,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 29 states have internal predecessors, (36), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6)
[2021-04-16 02:11:08,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions.
[2021-04-16 02:11:08,636 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 24
[2021-04-16 02:11:08,636 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-04-16 02:11:08,636 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions.
[2021-04-16 02:11:08,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 9 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2021-04-16 02:11:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions.
[2021-04-16 02:11:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-04-16 02:11:08,637 INFO L511 BasicCegarLoop]: Found error trace
[2021-04-16 02:11:08,637 INFO L519 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]
[2021-04-16 02:11:08,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:08,838 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-04-16 02:11:08,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-04-16 02:11:08,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1797927234, now seen corresponding path program 1 times
[2021-04-16 02:11:08,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-04-16 02:11:08,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282257849]
[2021-04-16 02:11:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-04-16 02:11:08,846 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-04-16 02:11:08,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951780042]
[2021-04-16 02:11:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-04-16 02:11:08,898 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-04-16 02:11:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-04-16 02:11:08,912 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-04-16 02:11:08,953 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-04-16 02:11:08,953 INFO L620 BasicCegarLoop]: Counterexample might be feasible
[2021-04-16 02:11:09,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-04-16 02:11:09,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 02:11:09 BoogieIcfgContainer
[2021-04-16 02:11:09,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-04-16 02:11:09,174 INFO L168 Benchmark]: Toolchain (without parser) took 3071.92 ms. Allocated memory is still 212.9 MB. Free memory was 177.5 MB in the beginning and 178.5 MB in the end (delta: -961.3 kB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,175 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 212.9 MB. Free memory was 194.2 MB in the beginning and 194.0 MB in the end (delta: 115.0 kB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.14 ms. Allocated memory is still 212.9 MB. Free memory was 177.3 MB in the beginning and 195.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,175 INFO L168 Benchmark]: Boogie Preprocessor took 39.16 ms. Allocated memory is still 212.9 MB. Free memory was 195.2 MB in the beginning and 193.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,175 INFO L168 Benchmark]: RCFGBuilder took 264.76 ms. Allocated memory is still 212.9 MB. Free memory was 193.6 MB in the beginning and 176.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,175 INFO L168 Benchmark]: TraceAbstraction took 2529.55 ms. Allocated memory is still 212.9 MB. Free memory was 176.3 MB in the beginning and 178.5 MB in the end (delta: -2.2 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-04-16 02:11:09,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10 ms. Allocated memory is still 212.9 MB. Free memory was 194.2 MB in the beginning and 194.0 MB in the end (delta: 115.0 kB). There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 235.14 ms. Allocated memory is still 212.9 MB. Free memory was 177.3 MB in the beginning and 195.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 39.16 ms. Allocated memory is still 212.9 MB. Free memory was 195.2 MB in the beginning and 193.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 264.76 ms. Allocated memory is still 212.9 MB. Free memory was 193.6 MB in the beginning and 176.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 2529.55 ms. Allocated memory is still 212.9 MB. Free memory was 176.3 MB in the beginning and 178.5 MB in the end (delta: -2.2 MB). There was no memory consumed. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 14]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L19] int counter = 0;
VAL [\old(counter)=16, counter=0]
[L21] int x, y;
[L22] long long a, b, p, q;
[L24] x = __VERIFIER_nondet_int()
[L25] y = __VERIFIER_nondet_int()
[L26] CALL assume_abort_if_not(y >= 1)
VAL [\old(cond)=1, \old(counter)=0, counter=0]
[L9] COND FALSE !(!cond)
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=0]
[L26] RET assume_abort_if_not(y >= 1)
VAL [\old(counter)=0, counter=0, x=-2147483646, y=2]
[L28] a = x
[L29] b = y
[L30] p = 1
[L31] q = 0
VAL [\old(counter)=0, a=-2147483646, b=2, counter=0, p=1, q=0, x=-2147483646, y=2]
[L33] EXPR counter++
VAL [\old(counter)=0, a=-2147483646, b=2, counter=1, counter++=0, p=1, q=0, x=-2147483646, y=2]
[L33] COND TRUE counter++<1
[L34] CALL __VERIFIER_assert(q + a * b * p == (long long) x * y)
VAL [\old(cond)=1, \old(counter)=0, counter=1]
[L12] COND FALSE !(!(cond))
VAL [\old(cond)=1, \old(counter)=0, cond=1, counter=1]
[L34] RET __VERIFIER_assert(q + a * b * p == (long long) x * y)
VAL [\old(counter)=0, a=-2147483646, b=2, counter=1, p=1, q=0, x=-2147483646, y=2]
[L36] COND FALSE !(!(a != 0 && b != 0))
VAL [\old(counter)=0, a=-2147483646, b=2, counter=1, p=1, q=0, x=-2147483646, y=2]
[L39] COND TRUE a % 2 == 0 && b % 2 == 0
[L40] a = a / 2
[L41] b = b / 2
[L42] p = 4 * p
VAL [\old(counter)=0, a=-1073741823, b=1, counter=1, p=4, q=0, x=-2147483646, y=2]
[L33] EXPR counter++
VAL [\old(counter)=0, a=-1073741823, b=1, counter=2, counter++=1, p=4, q=0, x=-2147483646, y=2]
[L33] COND FALSE !(counter++<1)
[L56] CALL __VERIFIER_assert(q == (long long) x * y)
VAL [\old(cond)=0, \old(counter)=0, counter=2]
[L12] COND TRUE !(cond)
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=2]
[L14] reach_error()
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=2]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2459.7ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 21.2ms, AutomataDifference: 482.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 107 SDtfs, 72 SDslu, 299 SDs, 0 SdLazy, 320 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 235.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 301.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.9ms SsaConstructionTime, 134.3ms SatisfiabilityAnalysisTime, 613.7ms InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 9 NumberOfNonLiveVariables, 370 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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 incorrect!
Received shutdown request...