/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_03-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 08:01:26,076 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 08:01:26,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 08:01:26,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 08:01:26,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 08:01:26,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 08:01:26,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 08:01:26,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 08:01:26,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 08:01:26,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 08:01:26,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 08:01:26,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 08:01:26,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 08:01:26,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 08:01:26,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 08:01:26,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 08:01:26,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 08:01:26,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 08:01:26,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 08:01:26,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 08:01:26,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 08:01:26,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 08:01:26,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 08:01:26,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 08:01:26,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 08:01:26,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 08:01:26,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 08:01:26,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 08:01:26,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 08:01:26,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 08:01:26,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 08:01:26,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 08:01:26,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 08:01:26,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 08:01:26,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 08:01:26,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 08:01:26,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 08:01:26,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 08:01:26,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 08:01:26,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 08:01:26,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 08:01:26,159 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 08:01:26,226 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 08:01:26,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 08:01:26,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 08:01:26,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 08:01:26,229 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 08:01:26,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 08:01:26,229 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 08:01:26,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 08:01:26,230 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 08:01:26,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 08:01:26,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 08:01:26,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 08:01:26,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 08:01:26,232 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 08:01:26,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 08:01:26,232 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 08:01:26,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 08:01:26,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 08:01:26,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 08:01:26,233 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 08:01:26,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 08:01:26,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 08:01:26,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 08:01:26,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 08:01:26,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 08:01:26,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 08:01:26,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 08:01:26,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 08:01:26,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 08:01:26,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
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: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true;
[2020-09-25 08:01:26,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 08:01:26,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 08:01:26,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 08:01:26,781 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 08:01:26,781 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 08:01:26,782 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_03-1.c
[2020-09-25 08:01:26,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00b994cd1/77726569836d42ecb7c8a320d3af015c/FLAGdf58eaa29
[2020-09-25 08:01:27,399 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 08:01:27,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/terminator_03-1.c
[2020-09-25 08:01:27,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00b994cd1/77726569836d42ecb7c8a320d3af015c/FLAGdf58eaa29
[2020-09-25 08:01:27,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00b994cd1/77726569836d42ecb7c8a320d3af015c
[2020-09-25 08:01:27,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 08:01:27,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 08:01:27,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 08:01:27,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 08:01:27,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 08:01:27,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:27" (1/1) ...
[2020-09-25 08:01:27,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74dd283d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:27, skipping insertion in model container
[2020-09-25 08:01:27,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:01:27" (1/1) ...
[2020-09-25 08:01:27,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 08:01:27,848 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 08:01:28,146 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:01:28,152 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 08:01:28,172 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 08:01:28,188 INFO L208 MainTranslator]: Completed translation
[2020-09-25 08:01:28,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28 WrapperNode
[2020-09-25 08:01:28,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 08:01:28,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 08:01:28,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 08:01:28,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 08:01:28,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
[2020-09-25 08:01:28,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 08:01:28,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 08:01:28,322 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 08:01:28,322 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 08:01:28,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-25 08:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 08:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 08:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 08:01:28,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 08:01:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 08:01:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 08:01:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 08:01:28,404 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 08:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 08:01:28,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 08:01:28,627 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 08:01:28,628 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 08:01:28,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:28 BoogieIcfgContainer
[2020-09-25 08:01:28,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 08:01:28,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 08:01:28,636 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 08:01:28,640 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 08:01:28,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:01:27" (1/3) ...
[2020-09-25 08:01:28,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9a53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:28, skipping insertion in model container
[2020-09-25 08:01:28,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:01:28" (2/3) ...
[2020-09-25 08:01:28,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f9a53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:01:28, skipping insertion in model container
[2020-09-25 08:01:28,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:01:28" (3/3) ...
[2020-09-25 08:01:28,645 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c
[2020-09-25 08:01:28,658 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 08:01:28,671 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 08:01:28,700 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 08:01:28,743 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 08:01:28,743 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 08:01:28,743 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 08:01:28,744 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 08:01:28,744 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 08:01:28,744 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 08:01:28,744 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 08:01:28,744 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 08:01:28,774 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states.
[2020-09-25 08:01:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-09-25 08:01:28,782 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:01:28,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:01:28,785 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:01:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:01:28,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1947240340, now seen corresponding path program 1 times
[2020-09-25 08:01:28,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:01:28,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697275550]
[2020-09-25 08:01:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:01:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:01:28,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:01:29,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:01:29,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24
[2020-09-25 08:01:29,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:01:29,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139
[2020-09-25 08:01:29,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:01:29,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:01:29,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 08:01:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17
[2020-09-25 08:01:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 08:01:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 08:01:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 08:01:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 08:01:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 08:01:29,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 08:01:29,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 08:01:29,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 08:01:29,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 08:01:29,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 08:01:29,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8
[2020-09-25 08:01:29,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 08:01:29,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 08:01:29,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 08:01:29,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 08:01:29,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 08:01:29,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697275550]
[2020-09-25 08:01:29,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 08:01:29,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 08:01:29,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864519961]
[2020-09-25 08:01:29,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 08:01:29,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 08:01:29,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 08:01:29,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 08:01:29,217 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states.
[2020-09-25 08:01:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 08:01:29,374 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions.
[2020-09-25 08:01:29,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 08:01:29,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-09-25 08:01:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 08:01:29,403 INFO L225 Difference]: With dead ends: 45
[2020-09-25 08:01:29,403 INFO L226 Difference]: Without dead ends: 18
[2020-09-25 08:01:29,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 08:01:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2020-09-25 08:01:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2020-09-25 08:01:29,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2020-09-25 08:01:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions.
[2020-09-25 08:01:29,473 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15
[2020-09-25 08:01:29,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 08:01:29,474 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions.
[2020-09-25 08:01:29,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 08:01:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions.
[2020-09-25 08:01:29,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-09-25 08:01:29,478 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 08:01:29,478 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 08:01:29,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 08:01:29,479 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 08:01:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 08:01:29,480 INFO L82 PathProgramCache]: Analyzing trace with hash -219943500, now seen corresponding path program 1 times
[2020-09-25 08:01:29,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 08:01:29,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116057573]
[2020-09-25 08:01:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 08:01:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 08:01:29,514 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 08:01:29,515 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 08:01:29,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 08:01:29,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:01:29 BoogieIcfgContainer
[2020-09-25 08:01:29,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 08:01:29,546 INFO L168 Benchmark]: Toolchain (without parser) took 1746.94 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.2 MB in the beginning and 136.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,549 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.31 ms. Allocated memory is still 147.8 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,554 INFO L168 Benchmark]: Boogie Preprocessor took 131.37 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 93.1 MB in the beginning and 183.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,556 INFO L168 Benchmark]: RCFGBuilder took 312.50 ms. Allocated memory is still 204.5 MB. Free memory was 182.9 MB in the beginning and 171.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,559 INFO L168 Benchmark]: TraceAbstraction took 906.08 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 136.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB.
[2020-09-25 08:01:29,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 387.31 ms. Allocated memory is still 147.8 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 131.37 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 93.1 MB in the beginning and 183.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 312.50 ms. Allocated memory is still 204.5 MB. Free memory was 182.9 MB in the beginning and 171.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 906.08 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 136.5 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L13] int x=__VERIFIER_nondet_int();
[L14] int y=__VERIFIER_nondet_int();
[L16] COND TRUE y>0
[L18] COND FALSE !(x<100)
[L23] CALL __VERIFIER_assert(y<=0 || (y<0 && x>=100))
[L4] COND TRUE !(cond)
[L5] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 7 SDslu, 67 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...