/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=0.3 --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/condgf.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 12:30:29,874 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 12:30:29,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 12:30:29,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 12:30:29,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 12:30:29,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 12:30:29,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 12:30:29,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 12:30:29,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 12:30:29,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 12:30:29,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 12:30:29,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 12:30:29,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 12:30:29,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 12:30:29,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 12:30:29,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 12:30:29,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 12:30:29,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 12:30:29,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 12:30:29,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 12:30:29,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 12:30:29,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 12:30:29,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 12:30:29,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 12:30:29,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 12:30:29,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 12:30:29,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 12:30:29,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 12:30:29,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 12:30:29,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 12:30:29,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 12:30:29,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 12:30:29,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 12:30:29,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 12:30:29,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 12:30:29,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 12:30:29,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 12:30:29,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 12:30:29,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 12:30:30,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 12:30:30,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 12:30:30,003 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 12:30:30,052 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 12:30:30,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 12:30:30,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 12:30:30,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 12:30:30,056 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 12:30:30,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 12:30:30,056 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 12:30:30,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 12:30:30,057 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 12:30:30,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 12:30:30,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 12:30:30,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 12:30:30,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 12:30:30,059 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 12:30:30,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 12:30:30,059 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 12:30:30,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 12:30:30,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 12:30:30,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 12:30:30,060 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 12:30:30,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 12:30:30,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 12:30:30,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 12:30:30,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 12:30:30,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 12:30:30,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 12:30:30,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 12:30:30,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 12:30:30,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 12:30:30,062 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true;
[2020-09-25 12:30:30,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 12:30:30,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 12:30:30,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 12:30:30,541 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 12:30:30,542 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 12:30:30,543 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condgf.c
[2020-09-25 12:30:30,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152748efd/ffdc4ff2206943f09052c2cbc6ba8a68/FLAGc338a9795
[2020-09-25 12:30:31,191 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 12:30:31,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/condgf.c
[2020-09-25 12:30:31,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152748efd/ffdc4ff2206943f09052c2cbc6ba8a68/FLAGc338a9795
[2020-09-25 12:30:31,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/152748efd/ffdc4ff2206943f09052c2cbc6ba8a68
[2020-09-25 12:30:31,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 12:30:31,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 12:30:31,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 12:30:31,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 12:30:31,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 12:30:31,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:30:31" (1/1) ...
[2020-09-25 12:30:31,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc51459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:31, skipping insertion in model container
[2020-09-25 12:30:31,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:30:31" (1/1) ...
[2020-09-25 12:30:31,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 12:30:31,611 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 12:30:31,961 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:30:31,977 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 12:30:32,028 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 12:30:32,053 INFO L208 MainTranslator]: Completed translation
[2020-09-25 12:30:32,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32 WrapperNode
[2020-09-25 12:30:32,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 12:30:32,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 12:30:32,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 12:30:32,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 12:30:32,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (1/1) ...
[2020-09-25 12:30:32,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 12:30:32,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 12:30:32,189 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 12:30:32,189 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 12:30:32,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (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 12:30:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 12:30:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 12:30:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 12:30:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 12:30:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 12:30:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 12:30:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 12:30:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 12:30:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 12:30:32,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 12:30:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 12:30:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 12:30:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 12:30:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 12:30:32,593 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 12:30:32,593 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-25 12:30:32,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:30:32 BoogieIcfgContainer
[2020-09-25 12:30:32,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 12:30:32,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 12:30:32,601 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 12:30:32,605 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 12:30:32,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:30:31" (1/3) ...
[2020-09-25 12:30:32,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65261d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:30:32, skipping insertion in model container
[2020-09-25 12:30:32,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:30:32" (2/3) ...
[2020-09-25 12:30:32,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65261d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:30:32, skipping insertion in model container
[2020-09-25 12:30:32,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:30:32" (3/3) ...
[2020-09-25 12:30:32,609 INFO L109 eAbstractionObserver]: Analyzing ICFG condgf.c
[2020-09-25 12:30:32,624 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 12:30:32,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 12:30:32,659 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 12:30:32,692 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 12:30:32,692 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 12:30:32,693 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 12:30:32,693 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 12:30:32,693 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 12:30:32,693 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 12:30:32,693 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 12:30:32,693 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 12:30:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states.
[2020-09-25 12:30:32,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 12:30:32,731 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:30:32,732 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 12:30:32,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:30:32,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:30:32,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1924334027, now seen corresponding path program 1 times
[2020-09-25 12:30:32,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:30:32,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955156256]
[2020-09-25 12:30:32,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:30:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:32,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:33,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46
[2020-09-25 12:30:33,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 12:30:33,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 769
[2020-09-25 12:30:33,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:33,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 12:30:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 12:30:33,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 12:30:33,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18
[2020-09-25 12:30:33,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:30:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:33,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:33,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 12:30:33,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:30:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 12:30:33,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:33,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:33,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:30:33,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:30:33,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:30:33,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:30:33,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 12:30:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:33,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:33,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:33,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:30:33,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:30:33,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-25 12:30:33,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:33,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 12:30:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:30:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 12:30:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:30:33,888 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 12:30:33,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955156256]
[2020-09-25 12:30:33,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 12:30:33,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 12:30:33,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923913778]
[2020-09-25 12:30:33,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 12:30:33,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:30:33,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 12:30:33,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 12:30:33,927 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 5 states.
[2020-09-25 12:30:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:30:34,326 INFO L93 Difference]: Finished difference Result 143 states and 171 transitions.
[2020-09-25 12:30:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 12:30:34,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35
[2020-09-25 12:30:34,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:30:34,341 INFO L225 Difference]: With dead ends: 143
[2020-09-25 12:30:34,341 INFO L226 Difference]: Without dead ends: 71
[2020-09-25 12:30:34,346 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 12:30:34,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-09-25 12:30:34,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70.
[2020-09-25 12:30:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2020-09-25 12:30:34,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions.
[2020-09-25 12:30:34,406 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 35
[2020-09-25 12:30:34,407 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:30:34,407 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions.
[2020-09-25 12:30:34,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 12:30:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions.
[2020-09-25 12:30:34,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2020-09-25 12:30:34,410 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:30:34,410 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]
[2020-09-25 12:30:34,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 12:30:34,411 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:30:34,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:30:34,412 INFO L82 PathProgramCache]: Analyzing trace with hash -269448694, now seen corresponding path program 1 times
[2020-09-25 12:30:34,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:30:34,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107486628]
[2020-09-25 12:30:34,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:30:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:34,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:34,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:34,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:35,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:36,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:36,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:37,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:38,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:38,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:38,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:39,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:39,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70
[2020-09-25 12:30:39,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11
[2020-09-25 12:30:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015
[2020-09-25 12:30:39,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:39,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 12:30:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30
[2020-09-25 12:30:39,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-25 12:30:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:30:40,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 12:30:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:40,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:40,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:40,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 12:30:40,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:30:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 12:30:40,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:40,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:30:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:30:40,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:30:40,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:30:40,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 12:30:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 12:30:40,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 12:30:40,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 12:30:40,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 12:30:40,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 12:30:40,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 12:30:40,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 12:30:40,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3
[2020-09-25 12:30:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 12:30:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 12:30:40,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 12:30:40,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 12:30:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 12:30:40,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107486628]
[2020-09-25 12:30:40,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-25 12:30:40,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2020-09-25 12:30:40,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64349490]
[2020-09-25 12:30:40,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states
[2020-09-25 12:30:40,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 12:30:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2020-09-25 12:30:40,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210
[2020-09-25 12:30:40,080 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 15 states.
[2020-09-25 12:30:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 12:30:41,092 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions.
[2020-09-25 12:30:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2020-09-25 12:30:41,092 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 59
[2020-09-25 12:30:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 12:30:41,094 INFO L225 Difference]: With dead ends: 112
[2020-09-25 12:30:41,095 INFO L226 Difference]: Without dead ends: 98
[2020-09-25 12:30:41,097 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812
[2020-09-25 12:30:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2020-09-25 12:30:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90.
[2020-09-25 12:30:41,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states.
[2020-09-25 12:30:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 96 transitions.
[2020-09-25 12:30:41,125 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 96 transitions. Word has length 59
[2020-09-25 12:30:41,126 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 12:30:41,126 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 96 transitions.
[2020-09-25 12:30:41,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states.
[2020-09-25 12:30:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 96 transitions.
[2020-09-25 12:30:41,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2020-09-25 12:30:41,132 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 12:30:41,133 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]
[2020-09-25 12:30:41,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 12:30:41,134 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 12:30:41,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 12:30:41,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1693383620, now seen corresponding path program 1 times
[2020-09-25 12:30:41,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 12:30:41,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559909941]
[2020-09-25 12:30:41,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 12:30:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 12:30:41,171 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 12:30:41,172 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 12:30:41,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 12:30:41,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:30:41 BoogieIcfgContainer
[2020-09-25 12:30:41,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 12:30:41,232 INFO L168 Benchmark]: Toolchain (without parser) took 9676.79 ms. Allocated memory was 140.0 MB in the beginning and 286.3 MB in the end (delta: 146.3 MB). Free memory was 102.8 MB in the beginning and 123.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 125.8 MB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,234 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.63 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 91.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,237 INFO L168 Benchmark]: Boogie Preprocessor took 133.96 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.5 MB in the beginning and 180.6 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,238 INFO L168 Benchmark]: RCFGBuilder took 409.60 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,239 INFO L168 Benchmark]: TraceAbstraction took 8625.89 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 158.3 MB in the beginning and 123.3 MB in the end (delta: 35.0 MB). Peak memory consumption was 118.4 MB. Max. memory is 7.1 GB.
[2020-09-25 12:30:41,250 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 496.63 ms. Allocated memory is still 140.0 MB. Free memory was 102.2 MB in the beginning and 91.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 133.96 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.5 MB in the beginning and 180.6 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 409.60 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.9 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 8625.89 ms. Allocated memory was 202.9 MB in the beginning and 286.3 MB in the end (delta: 83.4 MB). Free memory was 158.3 MB in the beginning and 123.3 MB in the end (delta: 35.0 MB). Peak memory consumption was 118.4 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] int *a = malloc(sizeof(int)*N);
[L29] sum[0] = 0
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 2
[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 sum[0]
[L42] COND FALSE !(sum[0] == N)
[L45] EXPR a[i]
[L45] a[i] = a[i] + 1
[L40] i++
[L40] COND FALSE !(i<N)
[L49] i=0
[L49] COND TRUE i<N
[L51] EXPR a[i]
[L51] CALL __VERIFIER_assert(a[i] == 0)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 177 SDslu, 345 SDs, 0 SdLazy, 635 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=2, 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, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 30578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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...