/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-1a84f73
[2021-05-01 08:23:23,704 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-05-01 08:23:23,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-05-01 08:23:23,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-05-01 08:23:23,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-05-01 08:23:23,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-05-01 08:23:23,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-05-01 08:23:23,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-05-01 08:23:23,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-05-01 08:23:23,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-05-01 08:23:23,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-05-01 08:23:23,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-05-01 08:23:23,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-05-01 08:23:23,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-05-01 08:23:23,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-05-01 08:23:23,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-05-01 08:23:23,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-05-01 08:23:23,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-05-01 08:23:23,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-05-01 08:23:23,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-05-01 08:23:23,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-05-01 08:23:23,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-05-01 08:23:23,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-05-01 08:23:23,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-05-01 08:23:23,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-05-01 08:23:23,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-05-01 08:23:23,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-05-01 08:23:23,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-05-01 08:23:23,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-05-01 08:23:23,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-05-01 08:23:23,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-05-01 08:23:23,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-05-01 08:23:23,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-05-01 08:23:23,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-05-01 08:23:23,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-05-01 08:23:23,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-05-01 08:23:23,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-05-01 08:23:23,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-05-01 08:23:23,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-05-01 08:23:23,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-05-01 08:23:23,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-05-01 08:23:23,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2021-05-01 08:23:23,792 INFO L113 SettingsManager]: Loading preferences was successful
[2021-05-01 08:23:23,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-05-01 08:23:23,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * sizeof long=4
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-05-01 08:23:23,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-05-01 08:23:23,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-05-01 08:23:23,795 INFO L138 SettingsManager]: * sizeof long double=12
[2021-05-01 08:23:23,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-05-01 08:23:23,795 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-05-01 08:23:23,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-05-01 08:23:23,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-05-01 08:23:23,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-05-01 08:23:23,796 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-05-01 08:23:23,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-05-01 08:23:23,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-05-01 08:23:23,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-05-01 08:23:23,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-05-01 08:23:23,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-05-01 08:23:23,797 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2021-05-01 08:23:23,797 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-05-01 08:23:24,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-05-01 08:23:24,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-05-01 08:23:24,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-05-01 08:23:24,177 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-05-01 08:23:24,178 INFO L275 PluginConnector]: CDTParser initialized
[2021-05-01 08:23:24,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c
[2021-05-01 08:23:24,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786bb5cbb/7f1817feddc046e9b07da0ee87997d73/FLAG71ccee8fc
[2021-05-01 08:23:24,664 INFO L306 CDTParser]: Found 1 translation units.
[2021-05-01 08:23:24,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo1-ll_valuebound10.c
[2021-05-01 08:23:24,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786bb5cbb/7f1817feddc046e9b07da0ee87997d73/FLAG71ccee8fc
[2021-05-01 08:23:25,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786bb5cbb/7f1817feddc046e9b07da0ee87997d73
[2021-05-01 08:23:25,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-05-01 08:23:25,068 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-05-01 08:23:25,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-05-01 08:23:25,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-05-01 08:23:25,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-05-01 08:23:25,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a830a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25, skipping insertion in model container
[2021-05-01 08:23:25,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-05-01 08:23:25,097 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-05-01 08:23:25,209 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/geo1-ll_valuebound10.c[546,559]
[2021-05-01 08:23:25,220 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 08:23:25,227 INFO L203 MainTranslator]: Completed pre-run
[2021-05-01 08:23:25,243 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/geo1-ll_valuebound10.c[546,559]
[2021-05-01 08:23:25,255 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 08:23:25,267 INFO L208 MainTranslator]: Completed translation
[2021-05-01 08:23:25,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25 WrapperNode
[2021-05-01 08:23:25,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-05-01 08:23:25,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-05-01 08:23:25,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-05-01 08:23:25,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-05-01 08:23:25,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (1/1) ...
[2021-05-01 08:23:25,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-05-01 08:23:25,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-05-01 08:23:25,307 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-05-01 08:23:25,307 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-05-01 08:23:25,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (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 08:23:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-05-01 08:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-05-01 08:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-05-01 08:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-05-01 08:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2021-05-01 08:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-05-01 08:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-05-01 08:23:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-05-01 08:23:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-05-01 08:23:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-05-01 08:23:25,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-05-01 08:23:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-05-01 08:23:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-05-01 08:23:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-05-01 08:23:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-05-01 08:23:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-05-01 08:23:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-05-01 08:23:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-05-01 08:23:25,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-05-01 08:23:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-05-01 08:23:25,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-05-01 08:23:25,645 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-05-01 08:23:25,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 08:23:25 BoogieIcfgContainer
[2021-05-01 08:23:25,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-05-01 08:23:25,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-05-01 08:23:25,648 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-05-01 08:23:25,651 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-05-01 08:23:25,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 08:23:25" (1/3) ...
[2021-05-01 08:23:25,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c68d052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 08:23:25, skipping insertion in model container
[2021-05-01 08:23:25,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 08:23:25" (2/3) ...
[2021-05-01 08:23:25,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c68d052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 08:23:25, skipping insertion in model container
[2021-05-01 08:23:25,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 08:23:25" (3/3) ...
[2021-05-01 08:23:25,654 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound10.c
[2021-05-01 08:23:25,659 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-05-01 08:23:25,679 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-05-01 08:23:25,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-05-01 08:23:25,710 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-05-01 08:23:25,711 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-05-01 08:23:25,711 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2021-05-01 08:23:25,711 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-05-01 08:23:25,711 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-05-01 08:23:25,711 INFO L381 AbstractCegarLoop]: Difference is false
[2021-05-01 08:23:25,711 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-05-01 08:23:25,711 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-05-01 08:23:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2021-05-01 08:23:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-05-01 08:23:25,730 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 08:23:25,730 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 08:23:25,737 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 08:23:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 08:23:25,742 INFO L82 PathProgramCache]: Analyzing trace with hash 774216096, now seen corresponding path program 1 times
[2021-05-01 08:23:25,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-05-01 08:23:25,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25670327]
[2021-05-01 08:23:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 08:23:25,808 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-05-01 08:23:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:25,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:25,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:25,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:25,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:25,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 08:23:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:25,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:25,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-05-01 08:23:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:26,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2021-05-01 08:23:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:26,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2021-05-01 08:23:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:26,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22
[2021-05-01 08:23:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 08:23:26,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 08:23:26,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 08:23:26,045 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2021-05-01 08:23:26,047 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2021-05-01 08:23:26,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25670327]
[2021-05-01 08:23:26,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [25670327] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 08:23:26,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 08:23:26,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-05-01 08:23:26,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523331290]
[2021-05-01 08:23:26,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-05-01 08:23:26,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2021-05-01 08:23:26,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-05-01 08:23:26,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 08:23:26,067 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2021-05-01 08:23:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 08:23:26,197 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions.
[2021-05-01 08:23:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-05-01 08:23:26,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33
[2021-05-01 08:23:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 08:23:26,206 INFO L225 Difference]: With dead ends: 57
[2021-05-01 08:23:26,206 INFO L226 Difference]: Without dead ends: 27
[2021-05-01 08:23:26,210 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-05-01 08:23:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2021-05-01 08:23:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2021-05-01 08:23:26,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2021-05-01 08:23:26,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions.
[2021-05-01 08:23:26,280 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 33
[2021-05-01 08:23:26,281 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-05-01 08:23:26,281 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions.
[2021-05-01 08:23:26,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2021-05-01 08:23:26,282 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions.
[2021-05-01 08:23:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-05-01 08:23:26,283 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 08:23:26,283 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 08:23:26,284 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-05-01 08:23:26,284 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 08:23:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 08:23:26,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1105237916, now seen corresponding path program 1 times
[2021-05-01 08:23:26,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-05-01 08:23:26,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769972575]
[2021-05-01 08:23:26,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 08:23:26,294 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-05-01 08:23:26,330 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2021-05-01 08:23:26,331 INFO L620 BasicCegarLoop]: Counterexample might be feasible
[2021-05-01 08:23:26,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-05-01 08:23:26,349 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually.
[2021-05-01 08:23:26,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 08:23:26 BoogieIcfgContainer
[2021-05-01 08:23:26,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-05-01 08:23:26,352 INFO L168 Benchmark]: Toolchain (without parser) took 1283.24 ms. Allocated memory is still 196.1 MB. Free memory was 162.4 MB in the beginning and 174.3 MB in the end (delta: -11.9 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,353 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 178.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.96 ms. Allocated memory is still 196.1 MB. Free memory was 162.2 MB in the beginning and 152.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,355 INFO L168 Benchmark]: Boogie Preprocessor took 37.27 ms. Allocated memory is still 196.1 MB. Free memory was 152.5 MB in the beginning and 180.3 MB in the end (delta: -27.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,356 INFO L168 Benchmark]: RCFGBuilder took 339.43 ms. Allocated memory is still 196.1 MB. Free memory was 180.3 MB in the beginning and 165.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,357 INFO L168 Benchmark]: TraceAbstraction took 701.71 ms. Allocated memory is still 196.1 MB. Free memory was 165.1 MB in the beginning and 174.3 MB in the end (delta: -9.2 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 08:23:26,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13 ms. Allocated memory is still 196.1 MB. Free memory is still 178.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 196.96 ms. Allocated memory is still 196.1 MB. Free memory was 162.2 MB in the beginning and 152.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 37.27 ms. Allocated memory is still 196.1 MB. Free memory was 152.5 MB in the beginning and 180.3 MB in the end (delta: -27.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 339.43 ms. Allocated memory is still 196.1 MB. Free memory was 180.3 MB in the beginning and 165.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 701.71 ms. Allocated memory is still 196.1 MB. Free memory was 165.1 MB in the beginning and 174.3 MB in the end (delta: -9.2 MB). There was no memory consumed. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L23] int z, k;
[L24] long long x, y, c;
[L25] z = __VERIFIER_nondet_int()
[L26] CALL assume_abort_if_not(z>=0 && z<=10)
[L13] COND FALSE !(!cond)
[L26] RET assume_abort_if_not(z>=0 && z<=10)
[L27] k = __VERIFIER_nondet_int()
[L28] CALL assume_abort_if_not(k>=0 && k<=10)
[L13] COND FALSE !(!cond)
[L28] RET assume_abort_if_not(k>=0 && k<=10)
[L29] CALL assume_abort_if_not(z >= 1)
[L13] COND FALSE !(!cond)
[L29] RET assume_abort_if_not(z >= 1)
[L30] CALL assume_abort_if_not(k >= 1)
[L13] COND FALSE !(!cond)
[L30] RET assume_abort_if_not(k >= 1)
[L32] x = 1
[L33] y = z
[L34] c = 1
[L36] COND TRUE 1
[L37] CALL __VERIFIER_assert(x*z - x - y + 1 == 0)
[L16] COND TRUE !(cond)
[L18] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 626.5ms, OverallIterations: 2, TraceHistogramMax: 4, EmptinessCheckTime: 11.5ms, AutomataDifference: 154.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 29 SDtfs, 17 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 57.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: unable to determine feasibility of some traces
Received shutdown request...