/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/ps2-ll_valuebound1.c


--------------------------------------------------------------------------------


This is Ultimate 0.2.1-dev-1a84f73
[2021-05-01 02:01:58,952 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-05-01 02:01:58,955 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2021-05-01 02:01:59,023 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-05-01 02:01:59,024 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-05-01 02:01:59,026 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-05-01 02:01:59,054 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-05-01 02:01:59,056 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-05-01 02:01:59,060 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
[2021-05-01 02:01:59,116 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-05-01 02:01:59,116 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-05-01 02:01:59,119 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-05-01 02:01:59,119 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-05-01 02:01:59,119 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-05-01 02:01:59,120 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-05-01 02:01:59,120 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-05-01 02:01:59,120 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-05-01 02:01:59,120 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-05-01 02:01:59,121 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-05-01 02:01:59,121 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-05-01 02:01:59,122 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-05-01 02:01:59,123 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-05-01 02:01:59,123 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-05-01 02:01:59,123 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-05-01 02:01:59,123 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-05-01 02:01:59,123 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-05-01 02:01:59,124 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-05-01 02:01:59,124 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-05-01 02:01:59,480 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-05-01 02:01:59,513 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-05-01 02:01:59,516 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-05-01 02:01:59,517 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-05-01 02:01:59,517 INFO  L275        PluginConnector]: CDTParser initialized
[2021-05-01 02:01:59,518 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c
[2021-05-01 02:01:59,582 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956812025/114c6e5a0eb343a48e9303dc81c267d2/FLAGe3cc2ddf0
[2021-05-01 02:01:59,975 INFO  L306              CDTParser]: Found 1 translation units.
[2021-05-01 02:01:59,975 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps2-ll_valuebound1.c
[2021-05-01 02:01:59,980 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956812025/114c6e5a0eb343a48e9303dc81c267d2/FLAGe3cc2ddf0
[2021-05-01 02:02:00,007 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/956812025/114c6e5a0eb343a48e9303dc81c267d2
[2021-05-01 02:02:00,009 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-05-01 02:02:00,012 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2021-05-01 02:02:00,015 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-05-01 02:02:00,016 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-05-01 02:02:00,019 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-05-01 02:02:00,020 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,021 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4fac32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00, skipping insertion in model container
[2021-05-01 02:02:00,021 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,027 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-05-01 02:02:00,043 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-05-01 02:02:00,196 WARN  L224   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/ps2-ll_valuebound1.c[454,467]
[2021-05-01 02:02:00,208 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-05-01 02:02:00,218 INFO  L203         MainTranslator]: Completed pre-run
[2021-05-01 02:02:00,283 WARN  L224   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/ps2-ll_valuebound1.c[454,467]
[2021-05-01 02:02:00,299 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-05-01 02:02:00,314 INFO  L208         MainTranslator]: Completed translation
[2021-05-01 02:02:00,315 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00 WrapperNode
[2021-05-01 02:02:00,315 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-05-01 02:02:00,316 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-05-01 02:02:00,316 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-05-01 02:02:00,318 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-05-01 02:02:00,329 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,329 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,337 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,337 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,350 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,355 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,357 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (1/1) ...
[2021-05-01 02:02:00,363 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-05-01 02:02:00,365 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-05-01 02:02:00,365 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-05-01 02:02:00,365 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-05-01 02:02:00,366 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (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
[2021-05-01 02:02:00,438 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-05-01 02:02:00,438 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-05-01 02:02:00,438 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2021-05-01 02:02:00,439 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-05-01 02:02:00,439 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-05-01 02:02:00,439 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2021-05-01 02:02:00,439 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2021-05-01 02:02:00,439 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-05-01 02:02:00,440 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2021-05-01 02:02:00,440 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-05-01 02:02:00,440 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-05-01 02:02:00,440 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-05-01 02:02:00,441 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-05-01 02:02:00,441 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-05-01 02:02:00,442 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-05-01 02:02:00,721 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-05-01 02:02:00,722 INFO  L299             CfgBuilder]: Removed 1 assume(true) statements.
[2021-05-01 02:02:00,723 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:02:00 BoogieIcfgContainer
[2021-05-01 02:02:00,723 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-05-01 02:02:00,724 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-05-01 02:02:00,725 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-05-01 02:02:00,727 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-05-01 02:02:00,727 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 02:02:00" (1/3) ...
[2021-05-01 02:02:00,728 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ac43fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:02:00, skipping insertion in model container
[2021-05-01 02:02:00,728 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 02:02:00" (2/3) ...
[2021-05-01 02:02:00,738 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ac43fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 02:02:00, skipping insertion in model container
[2021-05-01 02:02:00,738 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 02:02:00" (3/3) ...
[2021-05-01 02:02:00,739 INFO  L111   eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound1.c
[2021-05-01 02:02:00,758 INFO  L149   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-05-01 02:02:00,762 INFO  L161   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-05-01 02:02:00,798 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-05-01 02:02:00,817 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-05-01 02:02:00,817 INFO  L377      AbstractCegarLoop]: Hoare is true
[2021-05-01 02:02:00,817 INFO  L378      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-05-01 02:02:00,818 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-05-01 02:02:00,818 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-05-01 02:02:00,818 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-05-01 02:02:00,818 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-05-01 02:02:00,818 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-05-01 02:02:00,831 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2021-05-01 02:02:00,835 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-05-01 02:02:00,835 INFO  L511         BasicCegarLoop]: Found error trace
[2021-05-01 02:02:00,836 INFO  L519         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:02:00,836 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:02:00,852 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:02:00,852 INFO  L82        PathProgramCache]: Analyzing trace with hash 1914087080, now seen corresponding path program 1 times
[2021-05-01 02:02:00,859 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:02:00,860 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877541752]
[2021-05-01 02:02:00,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:02:00,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:02:01,036 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,037 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,038 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,038 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,095 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 02:02:01,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:02:01,113 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,114 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,116 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-05-01 02:02:01,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:02:01,126 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,128 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,129 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,129 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,131 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-05-01 02:02:01,131 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:02:01,131 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877541752]
[2021-05-01 02:02:01,133 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877541752] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:02:01,133 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:02:01,134 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-05-01 02:02:01,134 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962582445]
[2021-05-01 02:02:01,138 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-05-01 02:02:01,139 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:02:01,150 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-05-01 02:02:01,151 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 02:02:01,153 INFO  L87              Difference]: Start difference. First operand  has 27 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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)
[2021-05-01 02:02:01,232 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:02:01,232 INFO  L93              Difference]: Finished difference Result 45 states and 56 transitions.
[2021-05-01 02:02:01,233 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-05-01 02:02:01,234 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
[2021-05-01 02:02:01,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:02:01,240 INFO  L225             Difference]: With dead ends: 45
[2021-05-01 02:02:01,241 INFO  L226             Difference]: Without dead ends: 22
[2021-05-01 02:02:01,244 INFO  L775         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 02:02:01,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2021-05-01 02:02:01,281 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2021-05-01 02:02:01,283 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-05-01 02:02:01,284 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions.
[2021-05-01 02:02:01,286 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 17
[2021-05-01 02:02:01,286 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:02:01,286 INFO  L480      AbstractCegarLoop]: Abstraction has 22 states and 23 transitions.
[2021-05-01 02:02:01,287 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)
[2021-05-01 02:02:01,287 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions.
[2021-05-01 02:02:01,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-05-01 02:02:01,288 INFO  L511         BasicCegarLoop]: Found error trace
[2021-05-01 02:02:01,288 INFO  L519         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:02:01,288 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-05-01 02:02:01,288 INFO  L428      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:02:01,289 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:02:01,289 INFO  L82        PathProgramCache]: Analyzing trace with hash -1699034386, now seen corresponding path program 1 times
[2021-05-01 02:02:01,289 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:02:01,290 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346133008]
[2021-05-01 02:02:01,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:02:01,310 ERROR L278   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-05-01 02:02:01,310 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1296363818]
[2021-05-01 02:02:01,310 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
[2021-05-01 02:02:01,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:02:01,369 INFO  L263         TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core
[2021-05-01 02:02:01,373 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-05-01 02:02:01,380 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,380 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,381 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,381 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,382 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,382 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,383 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,383 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,384 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,385 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,385 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,386 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,387 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,387 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,387 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,388 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,389 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,389 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,389 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,390 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,390 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,391 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,391 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,392 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,393 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,393 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,394 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,394 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,395 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,395 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,396 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,396 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,397 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,397 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,398 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,398 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,399 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,399 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,399 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,400 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,401 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,401 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,401 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,402 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,402 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,403 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,403 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,404 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,404 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,405 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,405 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,406 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,406 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,407 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,407 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,408 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,408 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,409 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,409 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,410 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,410 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,411 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,411 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,411 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,419 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,420 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-05-01 02:02:01,422 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,429 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,430 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,430 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,431 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,431 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,437 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,438 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,438 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,439 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,439 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,440 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,440 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,440 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,442 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,444 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:01,445 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,447 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:01,447 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,448 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:01,448 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14
[2021-05-01 02:02:01,450 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,460 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,460 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,461 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,461 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,462 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,463 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,463 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,464 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,464 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,465 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,466 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,474 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,475 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,476 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,476 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,477 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,478 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,478 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,479 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,480 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,481 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,482 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,482 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,482 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,483 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,483 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,484 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,491 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,492 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,492 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,493 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,494 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,494 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,495 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,495 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,504 INFO  L142       QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size
[2021-05-01 02:02:01,504 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,505 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,505 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,506 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,506 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,507 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,507 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-05-01 02:02:01,508 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:02:01,508 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346133008]
[2021-05-01 02:02:01,508 WARN  L340   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-05-01 02:02:01,508 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296363818]
[2021-05-01 02:02:01,508 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296363818] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:02:01,508 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:02:01,509 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-05-01 02:02:01,509 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598039045]
[2021-05-01 02:02:01,510 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-05-01 02:02:01,510 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:02:01,511 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-05-01 02:02:01,511 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-05-01 02:02:01,511 INFO  L87              Difference]: Start difference. First operand 22 states and 23 transitions. Second operand  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-05-01 02:02:01,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:02:01,574 INFO  L93              Difference]: Finished difference Result 32 states and 34 transitions.
[2021-05-01 02:02:01,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-05-01 02:02:01,575 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17
[2021-05-01 02:02:01,577 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:02:01,578 INFO  L225             Difference]: With dead ends: 32
[2021-05-01 02:02:01,578 INFO  L226             Difference]: Without dead ends: 29
[2021-05-01 02:02:01,580 INFO  L775         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-05-01 02:02:01,580 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2021-05-01 02:02:01,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2021-05-01 02:02:01,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-05-01 02:02:01,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions.
[2021-05-01 02:02:01,587 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17
[2021-05-01 02:02:01,588 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:02:01,588 INFO  L480      AbstractCegarLoop]: Abstraction has 29 states and 30 transitions.
[2021-05-01 02:02:01,588 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-05-01 02:02:01,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions.
[2021-05-01 02:02:01,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-05-01 02:02:01,589 INFO  L511         BasicCegarLoop]: Found error trace
[2021-05-01 02:02:01,589 INFO  L519         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:02:01,809 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2021-05-01 02:02:01,809 INFO  L428      AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:02:01,809 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:02:01,809 INFO  L82        PathProgramCache]: Analyzing trace with hash 276758134, now seen corresponding path program 1 times
[2021-05-01 02:02:01,810 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:02:01,810 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324499124]
[2021-05-01 02:02:01,810 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:02:01,830 ERROR L278   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-05-01 02:02:01,831 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757681027]
[2021-05-01 02:02:01,831 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
[2021-05-01 02:02:01,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 02:02:01,922 INFO  L263         TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjunts are in the unsatisfiable core
[2021-05-01 02:02:01,923 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-05-01 02:02:01,926 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,926 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,927 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,927 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,927 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,928 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,928 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,929 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,929 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,929 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,930 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,930 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,931 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,931 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,932 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,932 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,933 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,933 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,933 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,934 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,934 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,935 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,935 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,935 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,936 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,937 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,937 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,937 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,938 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,938 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,939 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,939 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,940 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,940 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,940 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,941 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,941 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,942 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,942 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,942 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,943 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,943 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,944 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,944 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,944 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,945 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,945 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,946 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,946 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,946 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,947 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,947 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,947 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,948 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,948 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,949 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,949 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,950 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,950 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,950 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,951 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,951 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,952 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,952 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:01,956 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,956 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-05-01 02:02:01,957 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,958 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,958 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,959 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,959 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,960 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,964 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,964 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,965 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,965 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,965 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,966 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,966 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,967 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:01,968 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,969 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:01,969 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,970 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:01,970 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,970 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:01,971 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14
[2021-05-01 02:02:01,972 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,974 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,974 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,974 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:01,975 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,976 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,976 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,977 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,977 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,978 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,978 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,979 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,991 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,993 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,993 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,994 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:01,994 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:01,999 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,009 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,015 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,017 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,018 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,018 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,018 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,019 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,019 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,019 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,020 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,020 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,021 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,021 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,021 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,022 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,022 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,023 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,023 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,024 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,024 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,024 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,025 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,025 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,025 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,026 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,026 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,027 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,027 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,029 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,029 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,030 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,030 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,031 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,031 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,032 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,032 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,058 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,058 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,060 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,060 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,061 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,061 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,065 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,068 INFO  L147       QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7
[2021-05-01 02:02:02,068 INFO  L142       QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size
[2021-05-01 02:02:02,069 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,070 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,071 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,072 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,072 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,082 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,083 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,083 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,083 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,085 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,085 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,085 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,086 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,087 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,088 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,088 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,089 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,089 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,089 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,090 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,090 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,098 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,100 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,102 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,102 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,103 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,103 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,103 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,103 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,114 INFO  L142       QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size
[2021-05-01 02:02:02,115 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,115 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,115 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,116 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,116 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,116 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,117 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-05-01 02:02:02,117 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:02:02,118 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324499124]
[2021-05-01 02:02:02,118 WARN  L340   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-05-01 02:02:02,118 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757681027]
[2021-05-01 02:02:02,118 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757681027] provided 0 perfect and 1 imperfect interpolant sequences
[2021-05-01 02:02:02,118 INFO  L226   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-05-01 02:02:02,118 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8
[2021-05-01 02:02:02,118 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213818141]
[2021-05-01 02:02:02,119 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-05-01 02:02:02,119 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:02:02,119 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-05-01 02:02:02,119 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2021-05-01 02:02:02,120 INFO  L87              Difference]: Start difference. First operand 29 states and 30 transitions. Second operand  has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-05-01 02:02:02,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:02:02,234 INFO  L93              Difference]: Finished difference Result 39 states and 41 transitions.
[2021-05-01 02:02:02,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-05-01 02:02:02,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24
[2021-05-01 02:02:02,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:02:02,237 INFO  L225             Difference]: With dead ends: 39
[2021-05-01 02:02:02,237 INFO  L226             Difference]: Without dead ends: 36
[2021-05-01 02:02:02,239 INFO  L775         BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2021-05-01 02:02:02,240 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2021-05-01 02:02:02,256 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2021-05-01 02:02:02,257 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2021-05-01 02:02:02,258 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions.
[2021-05-01 02:02:02,258 INFO  L78                 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 24
[2021-05-01 02:02:02,258 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:02:02,258 INFO  L480      AbstractCegarLoop]: Abstraction has 36 states and 37 transitions.
[2021-05-01 02:02:02,259 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-05-01 02:02:02,259 INFO  L276                IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions.
[2021-05-01 02:02:02,259 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-05-01 02:02:02,259 INFO  L511         BasicCegarLoop]: Found error trace
[2021-05-01 02:02:02,260 INFO  L519         BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 02:02:02,465 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-05-01 02:02:02,465 INFO  L428      AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 02:02:02,466 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 02:02:02,466 INFO  L82        PathProgramCache]: Analyzing trace with hash 1640710638, now seen corresponding path program 2 times
[2021-05-01 02:02:02,466 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-05-01 02:02:02,466 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594114741]
[2021-05-01 02:02:02,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 02:02:02,479 ERROR L278   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-05-01 02:02:02,479 INFO  L361   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1082508105]
[2021-05-01 02:02:02,479 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
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
[2021-05-01 02:02:02,539 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-05-01 02:02:02,539 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2021-05-01 02:02:02,540 INFO  L263         TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-05-01 02:02:02,541 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-05-01 02:02:02,542 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,543 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,543 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,543 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,544 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,544 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,545 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,545 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,545 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,546 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,546 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,546 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,547 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,547 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,547 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,548 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,548 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,550 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,550 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,551 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,551 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,551 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,557 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,557 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,558 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,558 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,558 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,559 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,559 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,559 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,560 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,560 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,560 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,561 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,561 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,561 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,563 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,563 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,563 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,564 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,565 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,565 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,566 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,566 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,567 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,567 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,568 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,568 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,569 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,569 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,570 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,570 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,571 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,571 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,571 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,572 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,572 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,573 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,583 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,583 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,584 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,584 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,584 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,585 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,588 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,588 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8
[2021-05-01 02:02:02,590 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,591 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,592 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,592 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,593 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,594 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,598 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,599 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,599 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,599 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,600 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,600 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,600 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,601 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 02:02:02,601 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,602 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,602 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,603 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,603 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,603 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,604 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,604 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,612 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,612 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,613 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,613 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,614 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,614 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,615 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,615 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,625 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,626 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,626 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,627 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,627 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,628 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,628 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,629 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,630 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,631 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,632 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,632 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,633 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,633 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,633 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,634 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,635 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,636 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,636 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,637 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,637 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,637 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,638 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,638 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,639 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,641 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,641 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,641 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,642 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,642 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,643 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,643 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,643 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,644 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,644 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,644 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,645 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,645 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,645 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,646 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,646 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,646 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,647 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,647 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,647 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,648 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,648 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,648 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,649 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,649 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,649 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,650 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,650 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,651 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,651 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,652 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,652 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,653 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,653 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,654 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,655 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,656 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,656 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,657 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-05-01 02:02:02,658 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17
[2021-05-01 02:02:02,658 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,659 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,660 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,660 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9
[2021-05-01 02:02:02,661 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17
[2021-05-01 02:02:02,661 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,663 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,664 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,664 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,676 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,676 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,677 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,677 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,678 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,678 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,679 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,679 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,680 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,681 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,682 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,682 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,682 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,683 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,683 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,684 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,684 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,685 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,686 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,686 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,686 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,687 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,687 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-05-01 02:02:02,688 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13
[2021-05-01 02:02:02,688 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,690 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,691 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,691 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,691 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,692 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,692 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,692 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,693 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,693 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,693 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,694 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,694 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,694 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,694 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,695 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,695 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,695 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,696 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,696 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,696 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,697 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,697 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,697 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,697 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,698 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,698 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,698 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,699 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,699 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,700 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,700 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,701 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,701 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,702 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,702 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10
[2021-05-01 02:02:02,703 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,704 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,704 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,705 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,705 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15
[2021-05-01 02:02:02,706 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,708 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,708 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,709 WARN  L159       QuantifierPusher]: Ignoring assumption.
[2021-05-01 02:02:02,709 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,710 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7
[2021-05-01 02:02:02,710 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15
[2021-05-01 02:02:02,711 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16
[2021-05-01 02:02:02,712 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,714 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,714 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,715 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,715 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,715 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,716 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,716 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,716 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,717 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,717 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,717 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,718 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,718 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,718 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,719 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,719 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,719 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,719 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,720 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,720 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,720 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,721 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,721 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,721 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,722 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,722 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,722 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,722 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 02:02:02,723 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 02:02:02,723 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-05-01 02:02:02,723 INFO  L179   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-05-01 02:02:02,723 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594114741]
[2021-05-01 02:02:02,724 WARN  L340   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-05-01 02:02:02,724 INFO  L361   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082508105]
[2021-05-01 02:02:02,724 INFO  L200   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082508105] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 02:02:02,724 INFO  L226   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 02:02:02,724 INFO  L239   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-05-01 02:02:02,724 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608766904]
[2021-05-01 02:02:02,724 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-05-01 02:02:02,724 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-05-01 02:02:02,725 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-05-01 02:02:02,725 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2021-05-01 02:02:02,725 INFO  L87              Difference]: Start difference. First operand 36 states and 37 transitions. Second operand  has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-05-01 02:02:02,756 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 02:02:02,757 INFO  L93              Difference]: Finished difference Result 36 states and 37 transitions.
[2021-05-01 02:02:02,757 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-05-01 02:02:02,757 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31
[2021-05-01 02:02:02,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 02:02:02,758 INFO  L225             Difference]: With dead ends: 36
[2021-05-01 02:02:02,758 INFO  L226             Difference]: Without dead ends: 0
[2021-05-01 02:02:02,758 INFO  L775         BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-05-01 02:02:02,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-05-01 02:02:02,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-05-01 02:02:02,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-05-01 02:02:02,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-05-01 02:02:02,759 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31
[2021-05-01 02:02:02,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-05-01 02:02:02,759 INFO  L480      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-05-01 02:02:02,759 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-05-01 02:02:02,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-05-01 02:02:02,759 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2021-05-01 02:02:02,972 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-05-01 02:02:02,974 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-05-01 02:02:03,345 INFO  L198         CegarLoopUtils]: For program point  reach_errorEXIT(line 3)  no Hoare annotation was computed.
[2021-05-01 02:02:03,345 INFO  L198         CegarLoopUtils]: For program point  reach_errorENTRY(line 3)  no Hoare annotation was computed.
[2021-05-01 02:02:03,345 INFO  L198         CegarLoopUtils]: For program point  reach_errorFINAL(line 3)  no Hoare annotation was computed.
[2021-05-01 02:02:03,346 INFO  L198         CegarLoopUtils]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2021-05-01 02:02:03,346 INFO  L194         CegarLoopUtils]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2021-05-01 02:02:03,346 INFO  L198         CegarLoopUtils]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2021-05-01 02:02:03,346 INFO  L198         CegarLoopUtils]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2021-05-01 02:02:03,346 INFO  L201         CegarLoopUtils]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2021-05-01 02:02:03,347 INFO  L201         CegarLoopUtils]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2021-05-01 02:02:03,347 INFO  L198         CegarLoopUtils]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2021-05-01 02:02:03,347 INFO  L201         CegarLoopUtils]: At program point  assume_abort_if_notENTRY(lines 6 8)  the Hoare annotation is:  true
[2021-05-01 02:02:03,347 INFO  L198         CegarLoopUtils]: For program point  L7(line 7)  no Hoare annotation was computed.
[2021-05-01 02:02:03,347 INFO  L198         CegarLoopUtils]: For program point  L7-2(lines 6 8)  no Hoare annotation was computed.
[2021-05-01 02:02:03,348 INFO  L198         CegarLoopUtils]: For program point  assume_abort_if_notEXIT(lines 6 8)  no Hoare annotation was computed.
[2021-05-01 02:02:03,348 INFO  L201         CegarLoopUtils]: At program point  mainENTRY(lines 17 40)  the Hoare annotation is:  true
[2021-05-01 02:02:03,348 INFO  L194         CegarLoopUtils]: At program point  L28(line 28)  the Hoare annotation is:  (let ((.cse0 (<= main_~k~0 1)) (.cse1 (<= 0 main_~k~0))) (or (and .cse0 .cse1 (= main_~y~0 0) (<= 0 main_~c~0) (= main_~x~0 0)) (and (<= 1 main_~c~0) .cse0 .cse1 (= main_~y~0 1) (= main_~y~0 main_~x~0))))
[2021-05-01 02:02:03,348 INFO  L198         CegarLoopUtils]: For program point  L28-1(lines 27 36)  no Hoare annotation was computed.
[2021-05-01 02:02:03,348 INFO  L194         CegarLoopUtils]: At program point  L27-2(lines 27 36)  the Hoare annotation is:  (let ((.cse0 (<= main_~k~0 1)) (.cse1 (<= 0 main_~k~0))) (or (and .cse0 .cse1 (= main_~y~0 0) (<= 0 main_~c~0) (= main_~x~0 0)) (and (<= 1 main_~c~0) .cse0 .cse1 (= main_~y~0 1) (= main_~y~0 main_~x~0))))
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  mainEXIT(lines 17 40)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L194         CegarLoopUtils]: At program point  L27-3(lines 27 36)  the Hoare annotation is:  (or (and (= main_~y~0 1) (= main_~y~0 main_~x~0)) (and (= main_~y~0 0) (= main_~x~0 0)))
[2021-05-01 02:02:03,349 INFO  L201         CegarLoopUtils]: At program point  L21(line 21)  the Hoare annotation is:  true
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  L21-1(line 21)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  mainFINAL(lines 17 40)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  L37(line 37)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L201         CegarLoopUtils]: At program point  __VERIFIER_assertENTRY(lines 9 15)  the Hoare annotation is:  true
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  L11(lines 11 12)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  L10(lines 10 13)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  __VERIFIER_assertEXIT(lines 9 15)  no Hoare annotation was computed.
[2021-05-01 02:02:03,349 INFO  L198         CegarLoopUtils]: For program point  L10-2(lines 9 15)  no Hoare annotation was computed.
[2021-05-01 02:02:03,350 INFO  L198         CegarLoopUtils]: For program point  __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12)  no Hoare annotation was computed.
[2021-05-01 02:02:03,364 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 02:02:03 BoogieIcfgContainer
[2021-05-01 02:02:03,364 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-05-01 02:02:03,365 INFO  L168              Benchmark]: Toolchain (without parser) took 3353.72 ms. Allocated memory was 196.1 MB in the beginning and 275.8 MB in the end (delta: 79.7 MB). Free memory was 160.6 MB in the beginning and 237.0 MB in the end (delta: -76.4 MB). Peak memory consumption was 95.1 MB. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,365 INFO  L168              Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 196.1 MB. Free memory is still 177.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,365 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 299.87 ms. Allocated memory is still 196.1 MB. Free memory was 160.4 MB in the beginning and 179.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,368 INFO  L168              Benchmark]: Boogie Preprocessor took 47.10 ms. Allocated memory is still 196.1 MB. Free memory was 179.3 MB in the beginning and 177.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,368 INFO  L168              Benchmark]: RCFGBuilder took 358.16 ms. Allocated memory is still 196.1 MB. Free memory was 177.7 MB in the beginning and 163.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,368 INFO  L168              Benchmark]: TraceAbstraction took 2640.07 ms. Allocated memory was 196.1 MB in the beginning and 275.8 MB in the end (delta: 79.7 MB). Free memory was 163.1 MB in the beginning and 237.0 MB in the end (delta: -73.9 MB). Peak memory consumption was 96.5 MB. Max. memory is 8.0 GB.
[2021-05-01 02:02:03,369 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12 ms. Allocated memory is still 196.1 MB. Free memory is still 177.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
 * CACSL2BoogieTranslator took 299.87 ms. Allocated memory is still 196.1 MB. Free memory was 160.4 MB in the beginning and 179.3 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB.
 * Boogie Preprocessor took 47.10 ms. Allocated memory is still 196.1 MB. Free memory was 179.3 MB in the beginning and 177.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
 * RCFGBuilder took 358.16 ms. Allocated memory is still 196.1 MB. Free memory was 177.7 MB in the beginning and 163.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB.
 * TraceAbstraction took 2640.07 ms. Allocated memory was 196.1 MB in the beginning and 275.8 MB in the end (delta: 79.7 MB). Free memory was 163.1 MB in the beginning and 237.0 MB in the end (delta: -73.9 MB). Peak memory consumption was 96.5 MB. Max. memory is 8.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 12]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2158.3ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 9.2ms, AutomataDifference: 326.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 371.0ms, InitialAbstractionConstructionTime: 9.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 35 SDslu, 247 SDs, 0 SdLazy, 122 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 135.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 203.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 17 PreInvPairs, 23 NumberOfFragments, 118 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 99.6ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 308 FormulaSimplificationTreeSizeReductionInter, 263.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 59.4ms SsaConstructionTime, 128.0ms SatisfiabilityAnalysisTime, 672.6ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 249 SizeOfPredicates, 8 NumberOfNonLiveVariables, 357 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 17/19 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 27]: Loop Invariant
    Derived loop invariant: ((((k <= 1 && 0 <= k) && y == 0) && 0 <= c) && x == 0) || ((((1 <= c && k <= 1) && 0 <= k) && y == 1) && y == x)
RESULT: Ultimate proved your program to be correct!
Received shutdown request...