/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test26-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-b8ad66e
[2020-10-23 18:26:47,520 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-23 18:26:47,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-23 18:26:47,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-23 18:26:47,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-23 18:26:47,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-23 18:26:47,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-23 18:26:47,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-23 18:26:47,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-23 18:26:47,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-23 18:26:47,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-23 18:26:47,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-23 18:26:47,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-23 18:26:47,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-23 18:26:47,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-23 18:26:47,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-23 18:26:47,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-23 18:26:47,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-23 18:26:47,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-23 18:26:47,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-23 18:26:47,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-23 18:26:47,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-23 18:26:47,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-23 18:26:47,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-23 18:26:47,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-23 18:26:47,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-23 18:26:47,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-23 18:26:47,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-23 18:26:47,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-23 18:26:47,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-23 18:26:47,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-23 18:26:47,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-23 18:26:47,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-23 18:26:47,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-23 18:26:47,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-23 18:26:47,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-23 18:26:47,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-23 18:26:47,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-23 18:26:47,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-23 18:26:47,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-23 18:26:47,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-23 18:26:47,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-10-23 18:26:47,742 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-23 18:26:47,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-23 18:26:47,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-23 18:26:47,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-10-23 18:26:47,747 INFO L138 SettingsManager]: * Use SBE=true
[2020-10-23 18:26:47,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-23 18:26:47,748 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-23 18:26:47,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-23 18:26:47,748 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-23 18:26:47,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-23 18:26:47,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-23 18:26:47,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-23 18:26:47,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-23 18:26:47,751 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-23 18:26:47,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-23 18:26:47,751 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-23 18:26:47,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-23 18:26:47,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-23 18:26:47,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-10-23 18:26:47,752 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-23 18:26:47,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-23 18:26:47,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-23 18:26:47,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-23 18:26:47,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-10-23 18:26:47,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-23 18:26:47,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-10-23 18:26:47,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-23 18:26:47,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-23 18:26:47,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-10-23 18:26:47,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-10-23 18:26:48,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-23 18:26:48,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-23 18:26:48,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-23 18:26:48,228 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-23 18:26:48,229 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-23 18:26:48,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test26-1.c
[2020-10-23 18:26:48,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b67dfe08/7ea6ce59c8b84cb3b11a84d3465d4027/FLAG1745ed6b8
[2020-10-23 18:26:48,989 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-23 18:26:48,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test26-1.c
[2020-10-23 18:26:48,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b67dfe08/7ea6ce59c8b84cb3b11a84d3465d4027/FLAG1745ed6b8
[2020-10-23 18:26:49,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b67dfe08/7ea6ce59c8b84cb3b11a84d3465d4027
[2020-10-23 18:26:49,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-23 18:26:49,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-23 18:26:49,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-23 18:26:49,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-23 18:26:49,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-23 18:26:49,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e66967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49, skipping insertion in model container
[2020-10-23 18:26:49,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-23 18:26:49,413 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-23 18:26:49,582 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 18:26:49,594 INFO L203 MainTranslator]: Completed pre-run
[2020-10-23 18:26:49,611 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-23 18:26:49,628 INFO L208 MainTranslator]: Completed translation
[2020-10-23 18:26:49,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49 WrapperNode
[2020-10-23 18:26:49,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-23 18:26:49,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-23 18:26:49,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-23 18:26:49,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-23 18:26:49,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (1/1) ...
[2020-10-23 18:26:49,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-23 18:26:49,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-23 18:26:49,667 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-23 18:26:49,667 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-23 18:26:49,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (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
[2020-10-23 18:26:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-23 18:26:49,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-23 18:26:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-23 18:26:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assign
[2020-10-23 18:26:49,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-23 18:26:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-10-23 18:26:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-23 18:26:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-23 18:26:49,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure assign
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-23 18:26:49,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-23 18:26:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-23 18:26:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-23 18:26:49,975 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-23 18:26:49,975 INFO L298 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-23 18:26:49,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:26:49 BoogieIcfgContainer
[2020-10-23 18:26:49,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-23 18:26:49,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-23 18:26:49,979 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-23 18:26:49,982 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-23 18:26:49,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:26:49" (1/3) ...
[2020-10-23 18:26:49,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7358afee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:26:49, skipping insertion in model container
[2020-10-23 18:26:49,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:26:49" (2/3) ...
[2020-10-23 18:26:49,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7358afee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:26:49, skipping insertion in model container
[2020-10-23 18:26:49,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:26:49" (3/3) ...
[2020-10-23 18:26:49,986 INFO L111 eAbstractionObserver]: Analyzing ICFG test26-1.c
[2020-10-23 18:26:50,005 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-10-23 18:26:50,015 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-23 18:26:50,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-23 18:26:50,142 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-23 18:26:50,142 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-23 18:26:50,142 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-10-23 18:26:50,143 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-23 18:26:50,143 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-23 18:26:50,145 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-23 18:26:50,145 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-23 18:26:50,145 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-23 18:26:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states.
[2020-10-23 18:26:50,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-23 18:26:50,207 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-23 18:26:50,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-23 18:26:50,208 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-23 18:26:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-23 18:26:50,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1634235034, now seen corresponding path program 1 times
[2020-10-23 18:26:50,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-23 18:26:50,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095953149]
[2020-10-23 18:26:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-23 18:26:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-23 18:26:50,511 ERROR L253 erpolLogProxyWrapper]: Interpolant 2 not inductive
[2020-10-23 18:26:50,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-23 18:26:50,531 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check
at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219)
at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.<init>(NestedInterpolantsBuilder.java:166)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:97)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:84)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:74)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:134)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2020-10-23 18:26:50,537 INFO L168 Benchmark]: Toolchain (without parser) took 1165.67 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 123.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.6 MB. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,538 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,540 INFO L168 Benchmark]: Boogie Preprocessor took 36.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,542 INFO L168 Benchmark]: RCFGBuilder took 309.91 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,543 INFO L168 Benchmark]: TraceAbstraction took 555.72 ms. Allocated memory is still 151.0 MB. Free memory was 101.3 MB in the beginning and 123.8 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
[2020-10-23 18:26:50,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 252.28 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 36.42 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 309.91 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.8 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 555.72 ms. Allocated memory is still 151.0 MB. Free memory was 101.3 MB in the beginning and 123.8 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...