/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/modsf.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:19:41,672 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:19:41,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:19:41,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:19:41,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:19:41,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:19:41,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:19:41,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:19:41,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:19:41,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:19:41,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:19:41,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:19:41,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:19:41,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:19:41,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:19:41,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:19:41,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:19:41,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:19:41,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:19:41,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:19:41,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:19:41,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:19:41,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:19:41,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:19:41,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:19:41,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:19:41,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:19:41,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:19:41,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:19:41,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:19:41,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:19:41,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:19:41,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:19:41,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:19:41,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:19:41,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:19:41,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:19:41,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:19:41,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:19:41,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:19:41,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:19:41,808 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
[2020-09-24 17:19:41,858 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:19:41,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:19:41,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:19:41,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:19:41,862 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:19:41,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:19:41,862 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:19:41,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:19:41,863 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:19:41,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:19:41,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:19:41,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:19:41,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:19:41,865 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:19:41,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:19:41,866 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:19:41,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:19:41,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:19:41,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:19:41,866 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:19:41,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:19:41,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:19:41,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:19:41,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:19:41,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:19:41,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:19:41,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:19:41,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:19:41,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:19:41,869 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;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;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;log-additional-information=true;
[2020-09-24 17:19:42,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:19:42,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:19:42,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:19:42,343 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:19:42,343 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:19:42,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/modsf.c
[2020-09-24 17:19:42,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17e6bd981/e89e0ad128544648aa3274b4fcf1f4a2/FLAG3cd072be1
[2020-09-24 17:19:43,005 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:19:43,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/modsf.c
[2020-09-24 17:19:43,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17e6bd981/e89e0ad128544648aa3274b4fcf1f4a2/FLAG3cd072be1
[2020-09-24 17:19:43,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17e6bd981/e89e0ad128544648aa3274b4fcf1f4a2
[2020-09-24 17:19:43,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:19:43,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:19:43,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:43,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:19:43,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:19:43,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24834011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43, skipping insertion in model container
[2020-09-24 17:19:43,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:19:43,399 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:19:43,622 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:43,633 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:19:43,661 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:43,681 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:19:43,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43 WrapperNode
[2020-09-24 17:19:43,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:43,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:19:43,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:19:43,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:19:43,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (1/1) ...
[2020-09-24 17:19:43,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:19:43,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:19:43,829 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:19:43,829 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:19:43,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (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
[2020-09-24 17:19:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:19:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:19:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 17:19:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 17:19:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:19:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:19:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:19:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:19:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 17:19:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:19:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:19:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:19:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:19:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:19:44,345 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:19:44,345 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 17:19:44,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:44 BoogieIcfgContainer
[2020-09-24 17:19:44,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:19:44,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:19:44,354 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:19:44,358 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:19:44,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:19:43" (1/3) ...
[2020-09-24 17:19:44,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493d6b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:44, skipping insertion in model container
[2020-09-24 17:19:44,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:43" (2/3) ...
[2020-09-24 17:19:44,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493d6b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:44, skipping insertion in model container
[2020-09-24 17:19:44,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:44" (3/3) ...
[2020-09-24 17:19:44,362 INFO L109 eAbstractionObserver]: Analyzing ICFG modsf.c
[2020-09-24 17:19:44,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:19:44,386 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:19:44,409 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:19:44,438 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:19:44,438 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:19:44,438 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:19:44,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:19:44,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:19:44,438 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:19:44,439 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:19:44,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:19:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states.
[2020-09-24 17:19:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-24 17:19:44,470 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:44,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:44,472 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash 731228111, now seen corresponding path program 1 times
[2020-09-24 17:19:44,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:44,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260282574]
[2020-09-24 17:19:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:44,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:44,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:44,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:45,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-24 17:19:45,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 17:19:45,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385
[2020-09-24 17:19:45,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:45,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-09-24 17:19:45,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 17:19:45,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:45,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:45,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:45,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:45,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 17:19:45,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:45,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:45,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:45,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:45,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:45,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:45,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 17:19:45,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:45,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:45,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:45,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260282574]
[2020-09-24 17:19:45,157 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:45,157 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 17:19:45,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919966202]
[2020-09-24 17:19:45,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 17:19:45,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:45,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 17:19:45,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:45,192 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 3 states.
[2020-09-24 17:19:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:19:45,434 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions.
[2020-09-24 17:19:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 17:19:45,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37
[2020-09-24 17:19:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:19:45,450 INFO L225 Difference]: With dead ends: 145
[2020-09-24 17:19:45,450 INFO L226 Difference]: Without dead ends: 72
[2020-09-24 17:19:45,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:45,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2020-09-24 17:19:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72.
[2020-09-24 17:19:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states.
[2020-09-24 17:19:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions.
[2020-09-24 17:19:45,518 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 37
[2020-09-24 17:19:45,518 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:19:45,519 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions.
[2020-09-24 17:19:45,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 17:19:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions.
[2020-09-24 17:19:45,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-24 17:19:45,521 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:45,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:45,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:19:45,522 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:45,523 INFO L82 PathProgramCache]: Analyzing trace with hash 681190783, now seen corresponding path program 1 times
[2020-09-24 17:19:45,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:45,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136584525]
[2020-09-24 17:19:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:45,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:45,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:46,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:46,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:46,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:46,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:47,286 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:47,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-24 17:19:47,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8
[2020-09-24 17:19:47,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1737
[2020-09-24 17:19:47,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 17:19:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 17:19:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-24 17:19:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:47,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:47,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:47,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:47,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:47,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 17:19:47,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:47,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:47,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:47,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:47,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:47,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 17:19:47,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 17:19:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:47,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 17:19:47,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:47,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136584525]
[2020-09-24 17:19:47,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:47,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 17:19:47,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30807068]
[2020-09-24 17:19:47,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 17:19:47,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:47,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 17:19:47,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 17:19:47,390 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 5 states.
[2020-09-24 17:19:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:19:47,634 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions.
[2020-09-24 17:19:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 17:19:47,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37
[2020-09-24 17:19:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:19:47,637 INFO L225 Difference]: With dead ends: 121
[2020-09-24 17:19:47,637 INFO L226 Difference]: Without dead ends: 77
[2020-09-24 17:19:47,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-24 17:19:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2020-09-24 17:19:47,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76.
[2020-09-24 17:19:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states.
[2020-09-24 17:19:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions.
[2020-09-24 17:19:47,651 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 37
[2020-09-24 17:19:47,651 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:19:47,652 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions.
[2020-09-24 17:19:47,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 17:19:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions.
[2020-09-24 17:19:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2020-09-24 17:19:47,654 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:47,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:47,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:19:47,655 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:47,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:47,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1093467533, now seen corresponding path program 1 times
[2020-09-24 17:19:47,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:47,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837253551]
[2020-09-24 17:19:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:47,675 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-09-24 17:19:47,675 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2020-09-24 17:19:47,675 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:19:47,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 17:19:47,703 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually.
[2020-09-24 17:19:47,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:19:47 BoogieIcfgContainer
[2020-09-24 17:19:47,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:19:47,707 INFO L168 Benchmark]: Toolchain (without parser) took 4359.06 ms. Allocated memory was 140.5 MB in the beginning and 245.4 MB in the end (delta: 104.9 MB). Free memory was 102.8 MB in the beginning and 190.2 MB in the end (delta: -87.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,708 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.89 ms. Allocated memory is still 140.5 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,710 INFO L168 Benchmark]: Boogie Preprocessor took 146.07 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.6 MB in the beginning and 180.7 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,711 INFO L168 Benchmark]: RCFGBuilder took 523.94 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 159.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,712 INFO L168 Benchmark]: TraceAbstraction took 3349.44 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 158.4 MB in the beginning and 190.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-09-24 17:19:47,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 329.89 ms. Allocated memory is still 140.5 MB. Free memory was 102.1 MB in the beginning and 91.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 146.07 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.6 MB in the beginning and 180.7 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 523.94 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 159.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3349.44 ms. Allocated memory was 203.4 MB in the beginning and 245.4 MB in the end (delta: 41.9 MB). Free memory was 158.4 MB in the beginning and 190.2 MB in the end (delta: -31.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] long long *a = malloc(sizeof(long long)*N);
[L29] sum[0] = 0
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR sum[0]
[L37] EXPR a[i]
[L37] sum[0] = sum[0] + a[i]
[L35] i++
[L35] COND FALSE !(i<N)
[L40] i=0
[L40] COND TRUE i<N
[L42] EXPR a[i]
[L42] EXPR sum[0]
[L42] a[i] = a[i] + sum[0]
[L40] i++
[L40] COND FALSE !(i<N)
[L45] i=0
[L45] COND TRUE i<N
[L47] EXPR a[i]
[L47] EXPR sum[0]
[L47] a[i] = a[i] % sum[0]
[L45] i++
[L45] COND FALSE !(i<N)
[L50] i=0
[L50] COND TRUE i<N
[L52] EXPR a[i]
[L52] CALL __VERIFIER_assert(a[i] == 1)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 102 SDslu, 32 SDs, 0 SdLazy, 180 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 4536 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces
Received shutdown request...