/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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/sina2f.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 10:16:20,400 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 10:16:20,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 10:16:20,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 10:16:20,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 10:16:20,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 10:16:20,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 10:16:20,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 10:16:20,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 10:16:20,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 10:16:20,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 10:16:20,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 10:16:20,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 10:16:20,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 10:16:20,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 10:16:20,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 10:16:20,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 10:16:20,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 10:16:20,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 10:16:20,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 10:16:20,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 10:16:20,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 10:16:20,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 10:16:20,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 10:16:20,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 10:16:20,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 10:16:20,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 10:16:20,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 10:16:20,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 10:16:20,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 10:16:20,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 10:16:20,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 10:16:20,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 10:16:20,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 10:16:20,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 10:16:20,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 10:16:20,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 10:16:20,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 10:16:20,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 10:16:20,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 10:16:20,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 10:16:20,531 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 10:16:20,561 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 10:16:20,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 10:16:20,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 10:16:20,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 10:16:20,563 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 10:16:20,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 10:16:20,564 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 10:16:20,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 10:16:20,564 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 10:16:20,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 10:16:20,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 10:16:20,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 10:16:20,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 10:16:20,565 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 10:16:20,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 10:16:20,566 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 10:16:20,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 10:16:20,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 10:16:20,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 10:16:20,567 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 10:16:20,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 10:16:20,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 10:16:20,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 10:16:20,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 10:16:20,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 10:16:20,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 10:16:20,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 10:16:20,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 10:16:20,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 10:16:20,569 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true;
[2020-09-25 10:16:21,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 10:16:21,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 10:16:21,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 10:16:21,085 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 10:16:21,086 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 10:16:21,087 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina2f.c
[2020-09-25 10:16:21,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00a860da8/4c8d2861e4ec4e7db480a83a31609f85/FLAGa86202484
[2020-09-25 10:16:21,748 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 10:16:21,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/sina2f.c
[2020-09-25 10:16:21,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00a860da8/4c8d2861e4ec4e7db480a83a31609f85/FLAGa86202484
[2020-09-25 10:16:22,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/00a860da8/4c8d2861e4ec4e7db480a83a31609f85
[2020-09-25 10:16:22,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 10:16:22,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 10:16:22,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 10:16:22,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 10:16:22,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 10:16:22,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e807449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22, skipping insertion in model container
[2020-09-25 10:16:22,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 10:16:22,153 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 10:16:22,394 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:16:22,407 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 10:16:22,434 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 10:16:22,455 INFO L208 MainTranslator]: Completed translation
[2020-09-25 10:16:22,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22 WrapperNode
[2020-09-25 10:16:22,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 10:16:22,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 10:16:22,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 10:16:22,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 10:16:22,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (1/1) ...
[2020-09-25 10:16:22,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 10:16:22,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 10:16:22,590 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 10:16:22,590 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 10:16:22,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (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 10:16:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 10:16:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 10:16:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 10:16:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 10:16:22,666 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 10:16:22,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 10:16:22,669 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 10:16:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 10:16:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 10:16:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 10:16:22,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 10:16:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 10:16:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 10:16:22,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 10:16:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 10:16:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 10:16:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 10:16:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 10:16:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 10:16:23,014 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 10:16:23,014 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-25 10:16:23,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:23 BoogieIcfgContainer
[2020-09-25 10:16:23,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 10:16:23,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 10:16:23,021 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 10:16:23,029 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 10:16:23,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:16:22" (1/3) ...
[2020-09-25 10:16:23,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ddde32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:23, skipping insertion in model container
[2020-09-25 10:16:23,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:22" (2/3) ...
[2020-09-25 10:16:23,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ddde32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:23, skipping insertion in model container
[2020-09-25 10:16:23,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:23" (3/3) ...
[2020-09-25 10:16:23,035 INFO L109 eAbstractionObserver]: Analyzing ICFG sina2f.c
[2020-09-25 10:16:23,045 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 10:16:23,053 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 10:16:23,075 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 10:16:23,110 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 10:16:23,111 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 10:16:23,111 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 10:16:23,111 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 10:16:23,111 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 10:16:23,111 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 10:16:23,112 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 10:16:23,112 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 10:16:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states.
[2020-09-25 10:16:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 10:16:23,156 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:16:23,158 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]
[2020-09-25 10:16:23,158 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:16:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:16:23,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1325521379, now seen corresponding path program 1 times
[2020-09-25 10:16:23,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:16:23,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52569990]
[2020-09-25 10:16:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:16:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:23,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:23,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:23,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:23,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:23,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46
[2020-09-25 10:16:23,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 10:16:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330
[2020-09-25 10:16:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:23,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:16:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34
[2020-09-25 10:16:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:16:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 10:16:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:16:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:23,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:23,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:23,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 10:16:23,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:16:23,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 10:16:23,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:23,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:16:23,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:16:23,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:16:23,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:16:23,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 10:16:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:23,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:23,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:16:23,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:16:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 10:16:23,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:23,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:16:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:16:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:16:23,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:16:23,867 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 10:16:23,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52569990]
[2020-09-25 10:16:23,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:16:23,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 10:16:23,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065710377]
[2020-09-25 10:16:23,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 10:16:23,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:16:23,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 10:16:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 10:16:23,909 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states.
[2020-09-25 10:16:24,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:16:24,168 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions.
[2020-09-25 10:16:24,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 10:16:24,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35
[2020-09-25 10:16:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:16:24,183 INFO L225 Difference]: With dead ends: 125
[2020-09-25 10:16:24,183 INFO L226 Difference]: Without dead ends: 62
[2020-09-25 10:16:24,201 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
[2020-09-25 10:16:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2020-09-25 10:16:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2020-09-25 10:16:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states.
[2020-09-25 10:16:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions.
[2020-09-25 10:16:24,275 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 35
[2020-09-25 10:16:24,275 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:16:24,276 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions.
[2020-09-25 10:16:24,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 10:16:24,276 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions.
[2020-09-25 10:16:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 10:16:24,278 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:16:24,278 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]
[2020-09-25 10:16:24,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 10:16:24,279 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:16:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:16:24,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1536754598, now seen corresponding path program 1 times
[2020-09-25 10:16:24,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:16:24,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006061707]
[2020-09-25 10:16:24,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:16:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:24,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:24,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:24,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:25,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:25,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46
[2020-09-25 10:16:25,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 10:16:25,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1234
[2020-09-25 10:16:25,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:25,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 10:16:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 10:16:25,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 10:16:25,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11
[2020-09-25 10:16:25,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 10:16:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:25,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:25,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:25,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 10:16:25,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:16:25,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 10:16:25,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:25,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 10:16:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:16:25,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 10:16:25,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:16:25,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 10:16:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 10:16:25,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 10:16:25,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 10:16:25,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 10:16:25,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 10:16:25,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 10:16:25,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 10:16:25,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1
[2020-09-25 10:16:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 10:16:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 10:16:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 10:16:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 10:16:25,640 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 10:16:25,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006061707]
[2020-09-25 10:16:25,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 10:16:25,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 10:16:25,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258391571]
[2020-09-25 10:16:25,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 10:16:25,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 10:16:25,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 10:16:25,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 10:16:25,645 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand 5 states.
[2020-09-25 10:16:25,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 10:16:25,879 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions.
[2020-09-25 10:16:25,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 10:16:25,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35
[2020-09-25 10:16:25,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 10:16:25,882 INFO L225 Difference]: With dead ends: 100
[2020-09-25 10:16:25,882 INFO L226 Difference]: Without dead ends: 66
[2020-09-25 10:16:25,884 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
[2020-09-25 10:16:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2020-09-25 10:16:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65.
[2020-09-25 10:16:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states.
[2020-09-25 10:16:25,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions.
[2020-09-25 10:16:25,896 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 35
[2020-09-25 10:16:25,896 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 10:16:25,897 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions.
[2020-09-25 10:16:25,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 10:16:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions.
[2020-09-25 10:16:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-09-25 10:16:25,899 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 10:16:25,899 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]
[2020-09-25 10:16:25,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 10:16:25,900 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 10:16:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 10:16:25,900 INFO L82 PathProgramCache]: Analyzing trace with hash -313984591, now seen corresponding path program 1 times
[2020-09-25 10:16:25,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 10:16:25,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357621208]
[2020-09-25 10:16:25,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 10:16:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 10:16:25,934 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 10:16:25,934 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 10:16:25,940 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 10:16:25,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:16:25 BoogieIcfgContainer
[2020-09-25 10:16:25,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 10:16:25,968 INFO L168 Benchmark]: Toolchain (without parser) took 3868.48 ms. Allocated memory was 138.4 MB in the beginning and 232.8 MB in the end (delta: 94.4 MB). Free memory was 101.5 MB in the beginning and 96.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 99.1 MB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,969 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.20 ms. Allocated memory is still 138.4 MB. Free memory was 100.8 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,972 INFO L168 Benchmark]: Boogie Preprocessor took 132.84 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.3 MB in the beginning and 178.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,973 INFO L168 Benchmark]: RCFGBuilder took 430.44 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 158.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,974 INFO L168 Benchmark]: TraceAbstraction took 2943.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 157.8 MB in the beginning and 96.7 MB in the end (delta: 61.0 MB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB.
[2020-09-25 10:16:25,978 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 352.20 ms. Allocated memory is still 138.4 MB. Free memory was 100.8 MB in the beginning and 90.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 132.84 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 90.3 MB in the beginning and 178.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 430.44 ms. Allocated memory is still 201.3 MB. Free memory was 178.5 MB in the beginning and 158.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2943.05 ms. Allocated memory was 201.3 MB in the beginning and 232.8 MB in the end (delta: 31.5 MB). Free memory was 157.8 MB in the beginning and 96.7 MB in the end (delta: 61.0 MB). Peak memory consumption was 92.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a 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] = 1
[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] CALL __VERIFIER_assert(a[i] == N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 121 SDtfs, 85 SDslu, 31 SDs, 0 SdLazy, 151 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=71occurred 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, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4012 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 proved your program to be incorrect!
Received shutdown request...