/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-7d8eed3
[2020-11-07 06:33:59,159 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-11-07 06:33:59,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-07 06:33:59,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-07 06:33:59,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-07 06:33:59,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-07 06:33:59,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-07 06:33:59,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-07 06:33:59,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-07 06:33:59,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-07 06:33:59,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
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[2020-11-07 06:33:59,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-07 06:33:59,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-07 06:33:59,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-07 06:33:59,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-07 06:33:59,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-07 06:33:59,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-07 06:33:59,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-07 06:33:59,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-07 06:33:59,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-07 06:33:59,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-07 06:33:59,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-11-07 06:33:59,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-07 06:33:59,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-07 06:33:59,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-07 06:33:59,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-07 06:33:59,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-11-07 06:33:59,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-11-07 06:33:59,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-11-07 06:33:59,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-11-07 06:33:59,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-11-07 06:33:59,362 INFO L113 SettingsManager]: Loading preferences was successful
[2020-11-07 06:33:59,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-07 06:33:59,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-07 06:33:59,367 INFO L138 SettingsManager]: * sizeof long=4
[2020-11-07 06:33:59,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-11-07 06:33:59,368 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-11-07 06:33:59,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-11-07 06:33:59,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-11-07 06:33:59,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-07 06:33:59,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-11-07 06:33:59,370 INFO L138 SettingsManager]: * sizeof long double=12
[2020-11-07 06:33:59,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-11-07 06:33:59,371 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-11-07 06:33:59,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-11-07 06:33:59,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-07 06:33:59,372 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-11-07 06:33:59,372 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-11-07 06:33:59,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-11-07 06:33:59,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-07 06:33:59,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-07 06:33:59,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-11-07 06:33:59,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-07 06:33:59,374 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2020-11-07 06:33:59,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-07 06:33:59,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-07 06:33:59,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-07 06:33:59,849 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-11-07 06:33:59,850 INFO L275 PluginConnector]: CDTParser initialized
[2020-11-07 06:33:59,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i
[2020-11-07 06:33:59,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670b58471/7336007960d145a8b0cc229914e548d8/FLAGe1b5d17a8
[2020-11-07 06:34:00,618 INFO L306 CDTParser]: Found 1 translation units.
[2020-11-07 06:34:00,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i
[2020-11-07 06:34:00,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670b58471/7336007960d145a8b0cc229914e548d8/FLAGe1b5d17a8
[2020-11-07 06:34:00,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670b58471/7336007960d145a8b0cc229914e548d8
[2020-11-07 06:34:00,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-07 06:34:00,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-11-07 06:34:00,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-07 06:34:00,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-07 06:34:00,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-07 06:34:00,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:00" (1/1) ...
[2020-11-07 06:34:00,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8e64e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:00, skipping insertion in model container
[2020-11-07 06:34:00,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:34:00" (1/1) ...
[2020-11-07 06:34:00,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-11-07 06:34:00,983 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-11-07 06:34:01,209 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 06:34:01,218 INFO L203 MainTranslator]: Completed pre-run
[2020-11-07 06:34:01,242 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 06:34:01,260 INFO L208 MainTranslator]: Completed translation
[2020-11-07 06:34:01,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01 WrapperNode
[2020-11-07 06:34:01,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-07 06:34:01,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-07 06:34:01,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-07 06:34:01,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-11-07 06:34:01,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
[2020-11-07 06:34:01,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-07 06:34:01,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-07 06:34:01,314 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-11-07 06:34:01,314 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-11-07 06:34:01,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-07 06:34:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-11-07 06:34:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-07 06:34:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-11-07 06:34:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-11-07 06:34:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven
[2020-11-07 06:34:01,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd
[2020-11-07 06:34:01,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-11-07 06:34:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-11-07 06:34:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-11-07 06:34:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2020-11-07 06:34:01,435 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure printEven
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd
[2020-11-07 06:34:01,436 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-07 06:34:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-07 06:34:01,824 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-07 06:34:01,826 INFO L298 CfgBuilder]: Removed 3 assume(true) statements.
[2020-11-07 06:34:01,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:34:01 BoogieIcfgContainer
[2020-11-07 06:34:01,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-07 06:34:01,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-07 06:34:01,835 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-11-07 06:34:01,840 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-11-07 06:34:01,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:34:00" (1/3) ...
[2020-11-07 06:34:01,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f2e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:34:01, skipping insertion in model container
[2020-11-07 06:34:01,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:34:01" (2/3) ...
[2020-11-07 06:34:01,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f2e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:34:01, skipping insertion in model container
[2020-11-07 06:34:01,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:34:01" (3/3) ...
[2020-11-07 06:34:01,847 INFO L111 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i
[2020-11-07 06:34:01,864 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-11-07 06:34:01,868 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-07 06:34:01,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-11-07 06:34:01,921 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-11-07 06:34:01,921 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-11-07 06:34:01,921 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-11-07 06:34:01,922 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-07 06:34:01,922 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-07 06:34:01,922 INFO L382 AbstractCegarLoop]: Difference is false
[2020-11-07 06:34:01,922 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-07 06:34:01,922 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-07 06:34:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states.
[2020-11-07 06:34:01,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-11-07 06:34:01,967 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 06:34:01,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 06:34:01,968 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 06:34:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 06:34:01,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1625686649, now seen corresponding path program 1 times
[2020-11-07 06:34:01,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 06:34:01,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962498678]
[2020-11-07 06:34:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 06:34:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:02,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 06:34:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 06:34:02,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962498678]
[2020-11-07 06:34:02,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 06:34:02,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-11-07 06:34:02,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814718742]
[2020-11-07 06:34:02,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-11-07 06:34:02,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 06:34:02,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-11-07 06:34:02,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-11-07 06:34:02,359 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states.
[2020-11-07 06:34:02,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 06:34:02,727 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions.
[2020-11-07 06:34:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-11-07 06:34:02,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32
[2020-11-07 06:34:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 06:34:02,739 INFO L225 Difference]: With dead ends: 122
[2020-11-07 06:34:02,740 INFO L226 Difference]: Without dead ends: 64
[2020-11-07 06:34:02,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-11-07 06:34:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states.
[2020-11-07 06:34:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64.
[2020-11-07 06:34:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states.
[2020-11-07 06:34:02,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions.
[2020-11-07 06:34:02,803 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 32
[2020-11-07 06:34:02,803 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 06:34:02,803 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions.
[2020-11-07 06:34:02,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-11-07 06:34:02,804 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions.
[2020-11-07 06:34:02,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2020-11-07 06:34:02,807 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 06:34:02,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 06:34:02,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-07 06:34:02,809 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 06:34:02,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 06:34:02,811 INFO L82 PathProgramCache]: Analyzing trace with hash -2072481362, now seen corresponding path program 1 times
[2020-11-07 06:34:02,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 06:34:02,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723181229]
[2020-11-07 06:34:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 06:34:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 06:34:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 06:34:02,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723181229]
[2020-11-07 06:34:02,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 06:34:02,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-11-07 06:34:02,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927653843]
[2020-11-07 06:34:02,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-11-07 06:34:02,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 06:34:02,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-11-07 06:34:02,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-11-07 06:34:02,974 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 6 states.
[2020-11-07 06:34:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 06:34:03,236 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions.
[2020-11-07 06:34:03,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-07 06:34:03,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32
[2020-11-07 06:34:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 06:34:03,239 INFO L225 Difference]: With dead ends: 133
[2020-11-07 06:34:03,239 INFO L226 Difference]: Without dead ends: 90
[2020-11-07 06:34:03,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-11-07 06:34:03,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states.
[2020-11-07 06:34:03,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 66.
[2020-11-07 06:34:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states.
[2020-11-07 06:34:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions.
[2020-11-07 06:34:03,260 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 32
[2020-11-07 06:34:03,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 06:34:03,261 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions.
[2020-11-07 06:34:03,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-11-07 06:34:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions.
[2020-11-07 06:34:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2020-11-07 06:34:03,262 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 06:34:03,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 06:34:03,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-11-07 06:34:03,263 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 06:34:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 06:34:03,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1640974461, now seen corresponding path program 1 times
[2020-11-07 06:34:03,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 06:34:03,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114383993]
[2020-11-07 06:34:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 06:34:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:03,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 06:34:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-11-07 06:34:03,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114383993]
[2020-11-07 06:34:03,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 06:34:03,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-11-07 06:34:03,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100711303]
[2020-11-07 06:34:03,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-11-07 06:34:03,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 06:34:03,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-11-07 06:34:03,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-11-07 06:34:03,692 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 10 states.
[2020-11-07 06:34:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 06:34:04,221 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions.
[2020-11-07 06:34:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-11-07 06:34:04,222 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39
[2020-11-07 06:34:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 06:34:04,224 INFO L225 Difference]: With dead ends: 76
[2020-11-07 06:34:04,224 INFO L226 Difference]: Without dead ends: 72
[2020-11-07 06:34:04,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2020-11-07 06:34:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-11-07 06:34:04,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70.
[2020-11-07 06:34:04,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-11-07 06:34:04,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions.
[2020-11-07 06:34:04,240 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 39
[2020-11-07 06:34:04,240 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 06:34:04,241 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions.
[2020-11-07 06:34:04,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-11-07 06:34:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions.
[2020-11-07 06:34:04,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-11-07 06:34:04,242 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 06:34:04,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 06:34:04,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-11-07 06:34:04,243 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 06:34:04,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 06:34:04,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1527983, now seen corresponding path program 1 times
[2020-11-07 06:34:04,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 06:34:04,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795390650]
[2020-11-07 06:34:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 06:34:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:04,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 06:34:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 06:34:04,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-07 06:34:04,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795390650]
[2020-11-07 06:34:04,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 06:34:04,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-11-07 06:34:04,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696311393]
[2020-11-07 06:34:04,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-11-07 06:34:04,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 06:34:04,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-11-07 06:34:04,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-11-07 06:34:04,580 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 10 states.
[2020-11-07 06:34:05,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 06:34:05,118 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions.
[2020-11-07 06:34:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-11-07 06:34:05,119 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48
[2020-11-07 06:34:05,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 06:34:05,120 INFO L225 Difference]: With dead ends: 72
[2020-11-07 06:34:05,120 INFO L226 Difference]: Without dead ends: 0
[2020-11-07 06:34:05,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2020-11-07 06:34:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-11-07 06:34:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-11-07 06:34:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-11-07 06:34:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-11-07 06:34:05,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48
[2020-11-07 06:34:05,123 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 06:34:05,123 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-11-07 06:34:05,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-11-07 06:34:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-11-07 06:34:05,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-11-07 06:34:05,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-11-07 06:34:05,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-11-07 06:34:05,711 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,711 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,711 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,711 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,712 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,712 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,712 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,714 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,715 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,716 INFO L269 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,716 INFO L269 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,716 INFO L269 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,716 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|))
[2020-11-07 06:34:05,716 INFO L269 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true
[2020-11-07 06:34:05,717 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,717 INFO L269 CegarLoopResult]: At program point printOddENTRY(lines 18 20) the Hoare annotation is: true
[2020-11-07 06:34:05,717 INFO L262 CegarLoopResult]: At program point printOddFINAL(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2))))
[2020-11-07 06:34:05,717 INFO L262 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2))))
[2020-11-07 06:34:05,718 INFO L262 CegarLoopResult]: At program point printOddEXIT(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2))))
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point L39-6(lines 39 45) the Hoare annotation is: true
[2020-11-07 06:34:05,718 INFO L269 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true
[2020-11-07 06:34:05,719 INFO L269 CegarLoopResult]: At program point mainEXIT(lines 21 47) the Hoare annotation is: true
[2020-11-07 06:34:05,719 INFO L269 CegarLoopResult]: At program point L27-3(lines 27 30) the Hoare annotation is: true
[2020-11-07 06:34:05,719 INFO L269 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true
[2020-11-07 06:34:05,722 INFO L269 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: true
[2020-11-07 06:34:05,722 INFO L269 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: true
[2020-11-07 06:34:05,722 INFO L269 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true
[2020-11-07 06:34:05,722 INFO L269 CegarLoopResult]: At program point L27-6(lines 27 30) the Hoare annotation is: true
[2020-11-07 06:34:05,722 INFO L269 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true
[2020-11-07 06:34:05,723 INFO L269 CegarLoopResult]: At program point L27-7(lines 27 30) the Hoare annotation is: true
[2020-11-07 06:34:05,723 INFO L262 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))
[2020-11-07 06:34:05,724 INFO L262 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))))
[2020-11-07 06:34:05,724 INFO L262 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))))
[2020-11-07 06:34:05,725 INFO L269 CegarLoopResult]: At program point L32-2(lines 32 38) the Hoare annotation is: true
[2020-11-07 06:34:05,725 INFO L269 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: true
[2020-11-07 06:34:05,725 INFO L269 CegarLoopResult]: At program point L32-4(line 32) the Hoare annotation is: true
[2020-11-07 06:34:05,725 INFO L269 CegarLoopResult]: At program point L32-5(lines 32 38) the Hoare annotation is: true
[2020-11-07 06:34:05,726 INFO L269 CegarLoopResult]: At program point L32-6(lines 32 38) the Hoare annotation is: true
[2020-11-07 06:34:05,726 INFO L269 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true
[2020-11-07 06:34:05,726 INFO L262 CegarLoopResult]: At program point L41-1(lines 41 44) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))
[2020-11-07 06:34:05,727 INFO L262 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (let ((.cse0 (+ .cse1 1))) (<= .cse0 (* 2 (div .cse0 2)))) (= |main_#t~mem10| .cse1)))
[2020-11-07 06:34:05,727 INFO L262 CegarLoopResult]: At program point L41-4(line 41) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))
[2020-11-07 06:34:05,727 INFO L269 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true
[2020-11-07 06:34:05,727 INFO L269 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true
[2020-11-07 06:34:05,727 INFO L269 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: true
[2020-11-07 06:34:05,727 INFO L269 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true
[2020-11-07 06:34:05,727 INFO L269 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true
[2020-11-07 06:34:05,728 INFO L269 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true
[2020-11-07 06:34:05,728 INFO L269 CegarLoopResult]: At program point mainFINAL(lines 21 47) the Hoare annotation is: true
[2020-11-07 06:34:05,728 INFO L269 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true
[2020-11-07 06:34:05,728 INFO L262 CegarLoopResult]: At program point L34-1(lines 34 37) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|)))
[2020-11-07 06:34:05,728 INFO L262 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (or (= .cse0 |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) (<= .cse0 (* 2 (div .cse0 2)))))
[2020-11-07 06:34:05,728 INFO L262 CegarLoopResult]: At program point L34-4(line 34) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|)))
[2020-11-07 06:34:05,729 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 21 47) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))
[2020-11-07 06:34:05,732 INFO L262 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2))))
[2020-11-07 06:34:05,733 INFO L262 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2)))))
[2020-11-07 06:34:05,733 INFO L262 CegarLoopResult]: At program point L43-2(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2)))))
[2020-11-07 06:34:05,734 INFO L269 CegarLoopResult]: At program point L39-2(lines 39 45) the Hoare annotation is: true
[2020-11-07 06:34:05,735 INFO L269 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: true
[2020-11-07 06:34:05,735 INFO L269 CegarLoopResult]: At program point L39-4(line 39) the Hoare annotation is: true
[2020-11-07 06:34:05,735 INFO L269 CegarLoopResult]: At program point L39-5(lines 39 45) the Hoare annotation is: true
[2020-11-07 06:34:05,735 INFO L262 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))))
[2020-11-07 06:34:05,735 INFO L262 CegarLoopResult]: At program point printEvenEXIT(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))))
[2020-11-07 06:34:05,735 INFO L269 CegarLoopResult]: At program point printEvenENTRY(lines 15 17) the Hoare annotation is: true
[2020-11-07 06:34:05,736 INFO L262 CegarLoopResult]: At program point printEvenFINAL(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2)))))
[2020-11-07 06:34:05,736 INFO L269 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 14) the Hoare annotation is: true
[2020-11-07 06:34:05,740 INFO L262 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-11-07 06:34:05,740 INFO L262 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2020-11-07 06:34:05,740 INFO L262 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0)
[2020-11-07 06:34:05,741 INFO L262 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-11-07 06:34:05,741 INFO L262 CegarLoopResult]: At program point __VERIFIER_assertEXIT(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0)))
[2020-11-07 06:34:05,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:34:05 BoogieIcfgContainer
[2020-11-07 06:34:05,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-11-07 06:34:05,773 INFO L168 Benchmark]: Toolchain (without parser) took 4838.45 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 134.9 MB in the beginning and 112.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 107.7 MB. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,774 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.17 ms. Allocated memory is still 151.0 MB. Free memory was 134.2 MB in the beginning and 124.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,775 INFO L168 Benchmark]: Boogie Preprocessor took 51.11 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 135.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,776 INFO L168 Benchmark]: RCFGBuilder took 515.74 ms. Allocated memory is still 151.0 MB. Free memory was 135.2 MB in the beginning and 116.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,777 INFO L168 Benchmark]: TraceAbstraction took 3932.05 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 116.0 MB in the beginning and 112.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 89.6 MB. Max. memory is 8.0 GB.
[2020-11-07 06:34:05,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 320.17 ms. Allocated memory is still 151.0 MB. Free memory was 134.2 MB in the beginning and 124.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 51.11 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 135.2 MB in the end (delta: -10.5 MB). Peak memory consumption was 2.4 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 515.74 ms. Allocated memory is still 151.0 MB. Free memory was 135.2 MB in the beginning and 116.4 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 3932.05 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 116.0 MB in the beginning and 112.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 89.6 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 32]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 39]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 27]: Loop Invariant
Derived loop invariant: 1
- ProcedureContractResult [Line: 12]: Procedure Contract for reach_error
Derived contract for procedure reach_error: 1
- ProcedureContractResult [Line: 18]: Procedure Contract for printOdd
Derived contract for procedure printOdd: !(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) || !(i == i / 2 * 2)
- ProcedureContractResult [Line: 15]: Procedure Contract for printEven
Derived contract for procedure printEven: i <= 2 * (i / 2) || !(\old(i) <= 2 * (\old(i) / 2))
- ProcedureContractResult [Line: 21]: Procedure Contract for main
Derived contract for procedure main: 1
- ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 96 SDslu, 722 SDs, 0 SdLazy, 610 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 139 PreInvPairs, 186 NumberOfFragments, 558 HoareAnnotationTreeSize, 139 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 75 FomulaSimplificationsInter, 429 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 17184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...