/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-token-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 18:18:40,549 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 18:18:40,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 18:18:40,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 18:18:40,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 18:18:40,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 18:18:40,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 18:18:40,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 18:18:40,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 18:18:40,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 18:18:40,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 18:18:40,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 18:18:40,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 18:18:40,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 18:18:40,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 18:18:40,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 18:18:40,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 18:18:40,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 18:18:40,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 18:18:40,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 18:18:40,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 18:18:40,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 18:18:40,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 18:18:40,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 18:18:40,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 18:18:40,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 18:18:40,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 18:18:40,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 18:18:40,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 18:18:40,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 18:18:40,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 18:18:40,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 18:18:40,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 18:18:40,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 18:18:40,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 18:18:40,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 18:18:40,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 18:18:40,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 18:18:40,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 18:18:40,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 18:18:40,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 18:18:40,629 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 18:18:40,670 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 18:18:40,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 18:18:40,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 18:18:40,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 18:18:40,672 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 18:18:40,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 18:18:40,673 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 18:18:40,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 18:18:40,674 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 18:18:40,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 18:18:40,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 18:18:40,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 18:18:40,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 18:18:40,676 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 18:18:40,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 18:18:40,677 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 18:18:40,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 18:18:40,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 18:18:40,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 18:18:40,677 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 18:18:40,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 18:18:40,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 18:18:40,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 18:18:40,678 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 18:18:40,678 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 18:18:40,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 18:18:40,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 18:18:40,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 18:18:40,680 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 18:18:40,680 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true;
[2020-09-24 18:18:41,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 18:18:41,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 18:18:41,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 18:18:41,213 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 18:18:41,213 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 18:18:41,214 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-token-1.i
[2020-09-24 18:18:41,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72377d64a/c3157b8ab0c7418ca22403c298d30639/FLAG6b2ac6a96
[2020-09-24 18:18:41,940 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 18:18:41,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/sll-token-1.i
[2020-09-24 18:18:41,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72377d64a/c3157b8ab0c7418ca22403c298d30639/FLAG6b2ac6a96
[2020-09-24 18:18:42,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/72377d64a/c3157b8ab0c7418ca22403c298d30639
[2020-09-24 18:18:42,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 18:18:42,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 18:18:42,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 18:18:42,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 18:18:42,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 18:18:42,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263e4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42, skipping insertion in model container
[2020-09-24 18:18:42,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 18:18:42,261 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 18:18:42,793 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:18:42,813 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 18:18:42,856 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:18:42,915 INFO L208 MainTranslator]: Completed translation
[2020-09-24 18:18:42,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42 WrapperNode
[2020-09-24 18:18:42,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 18:18:42,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 18:18:42,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 18:18:42,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 18:18:42,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
[2020-09-24 18:18:42,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 18:18:42,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 18:18:42,992 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 18:18:42,993 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 18:18:42,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 18:18:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 18:18:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 18:18:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 18:18:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-09-24 18:18:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-09-24 18:18:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-09-24 18:18:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-09-24 18:18:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-09-24 18:18:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-09-24 18:18:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-09-24 18:18:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-09-24 18:18:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-09-24 18:18:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-09-24 18:18:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-09-24 18:18:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-09-24 18:18:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-09-24 18:18:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-09-24 18:18:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-09-24 18:18:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-09-24 18:18:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-09-24 18:18:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-09-24 18:18:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-09-24 18:18:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-09-24 18:18:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-09-24 18:18:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-09-24 18:18:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-09-24 18:18:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-09-24 18:18:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-09-24 18:18:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-09-24 18:18:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-09-24 18:18:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-09-24 18:18:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-09-24 18:18:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-09-24 18:18:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-09-24 18:18:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-09-24 18:18:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-09-24 18:18:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-09-24 18:18:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-09-24 18:18:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-09-24 18:18:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-09-24 18:18:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-09-24 18:18:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-09-24 18:18:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-09-24 18:18:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-09-24 18:18:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-09-24 18:18:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-09-24 18:18:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-09-24 18:18:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 18:18:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 18:18:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-09-24 18:18:43,086 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-09-24 18:18:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 18:18:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-09-24 18:18:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-09-24 18:18:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-09-24 18:18:43,087 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 18:18:43,088 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-09-24 18:18:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-09-24 18:18:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-09-24 18:18:43,089 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-09-24 18:18:43,090 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-09-24 18:18:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-09-24 18:18:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-09-24 18:18:43,091 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-09-24 18:18:43,092 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-09-24 18:18:43,093 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-09-24 18:18:43,094 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-09-24 18:18:43,095 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 18:18:43,096 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 18:18:43,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 18:18:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 18:18:43,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 18:18:43,726 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 18:18:43,726 INFO L295 CfgBuilder]: Removed 15 assume(true) statements.
[2020-09-24 18:18:43,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:43 BoogieIcfgContainer
[2020-09-24 18:18:43,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 18:18:43,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 18:18:43,733 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 18:18:43,738 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 18:18:43,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:18:42" (1/3) ...
[2020-09-24 18:18:43,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1794bfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:43, skipping insertion in model container
[2020-09-24 18:18:43,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:18:42" (2/3) ...
[2020-09-24 18:18:43,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1794bfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:18:43, skipping insertion in model container
[2020-09-24 18:18:43,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:18:43" (3/3) ...
[2020-09-24 18:18:43,743 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-token-1.i
[2020-09-24 18:18:43,756 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 18:18:43,767 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations.
[2020-09-24 18:18:43,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-09-24 18:18:43,827 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 18:18:43,827 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 18:18:43,828 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 18:18:43,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 18:18:43,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 18:18:43,828 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 18:18:43,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 18:18:43,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 18:18:43,857 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states.
[2020-09-24 18:18:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-09-24 18:18:43,867 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:18:43,868 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]
[2020-09-24 18:18:43,869 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:18:43,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:18:43,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1451075683, now seen corresponding path program 1 times
[2020-09-24 18:18:43,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:18:43,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242133042]
[2020-09-24 18:18:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:18:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:44,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:44,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:44,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:44,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29
[2020-09-24 18:18:44,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 18:18:44,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584
[2020-09-24 18:18:44,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:18:44,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-24 18:18:44,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:18:44,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-24 18:18:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:18:44,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:44,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:44,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:18:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-24 18:18:44,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:44,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:18:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:18:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:18:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:18:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 18:18:44,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242133042]
[2020-09-24 18:18:44,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:18:44,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 18:18:44,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920472979]
[2020-09-24 18:18:44,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 18:18:44,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:18:44,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 18:18:44,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 18:18:44,784 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states.
[2020-09-24 18:18:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:18:45,020 INFO L93 Difference]: Finished difference Result 176 states and 222 transitions.
[2020-09-24 18:18:45,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 18:18:45,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22
[2020-09-24 18:18:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:18:45,038 INFO L225 Difference]: With dead ends: 176
[2020-09-24 18:18:45,038 INFO L226 Difference]: Without dead ends: 83
[2020-09-24 18:18:45,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 18:18:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2020-09-24 18:18:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83.
[2020-09-24 18:18:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states.
[2020-09-24 18:18:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions.
[2020-09-24 18:18:45,105 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 22
[2020-09-24 18:18:45,106 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:18:45,106 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions.
[2020-09-24 18:18:45,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 18:18:45,106 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions.
[2020-09-24 18:18:45,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-24 18:18:45,107 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:18:45,108 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]
[2020-09-24 18:18:45,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 18:18:45,109 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:18:45,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:18:45,109 INFO L82 PathProgramCache]: Analyzing trace with hash -410944389, now seen corresponding path program 1 times
[2020-09-24 18:18:45,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:18:45,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109422474]
[2020-09-24 18:18:45,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:18:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:45,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:45,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:45,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30
[2020-09-24 18:18:45,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:45,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198
[2020-09-24 18:18:45,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:45,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 18:18:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22
[2020-09-24 18:18:45,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 18:18:45,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:18:45,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:18:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:45,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:45,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:45,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:18:45,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:45,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 18:18:45,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:45,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:18:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:18:45,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:18:45,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:18:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 18:18:45,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109422474]
[2020-09-24 18:18:45,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:18:45,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 18:18:45,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409626432]
[2020-09-24 18:18:45,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 18:18:45,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:18:45,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 18:18:45,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-09-24 18:18:45,429 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand 7 states.
[2020-09-24 18:18:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:18:45,839 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions.
[2020-09-24 18:18:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-24 18:18:45,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23
[2020-09-24 18:18:45,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:18:45,842 INFO L225 Difference]: With dead ends: 148
[2020-09-24 18:18:45,843 INFO L226 Difference]: Without dead ends: 146
[2020-09-24 18:18:45,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2020-09-24 18:18:45,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-09-24 18:18:45,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 81.
[2020-09-24 18:18:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states.
[2020-09-24 18:18:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 83 transitions.
[2020-09-24 18:18:45,858 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 83 transitions. Word has length 23
[2020-09-24 18:18:45,858 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:18:45,858 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 83 transitions.
[2020-09-24 18:18:45,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 18:18:45,859 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 83 transitions.
[2020-09-24 18:18:45,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-09-24 18:18:45,860 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:18:45,860 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]
[2020-09-24 18:18:45,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 18:18:45,861 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:18:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:18:45,861 INFO L82 PathProgramCache]: Analyzing trace with hash -922794179, now seen corresponding path program 1 times
[2020-09-24 18:18:45,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:18:45,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709722707]
[2020-09-24 18:18:45,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:18:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:45,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:46,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:46,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 18:18:46,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:46,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185
[2020-09-24 18:18:46,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 18:18:46,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-24 18:18:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16
[2020-09-24 18:18:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:18:46,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:18:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:46,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:18:46,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 18:18:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:18:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:18:46,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:18:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:18:46,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 18:18:46,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709722707]
[2020-09-24 18:18:46,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:18:46,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-24 18:18:46,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946441039]
[2020-09-24 18:18:46,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-24 18:18:46,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:18:46,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-24 18:18:46,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-24 18:18:46,147 INFO L87 Difference]: Start difference. First operand 81 states and 83 transitions. Second operand 6 states.
[2020-09-24 18:18:46,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:18:46,355 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions.
[2020-09-24 18:18:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 18:18:46,355 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24
[2020-09-24 18:18:46,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:18:46,357 INFO L225 Difference]: With dead ends: 142
[2020-09-24 18:18:46,357 INFO L226 Difference]: Without dead ends: 140
[2020-09-24 18:18:46,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2020-09-24 18:18:46,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states.
[2020-09-24 18:18:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 79.
[2020-09-24 18:18:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states.
[2020-09-24 18:18:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 81 transitions.
[2020-09-24 18:18:46,368 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 81 transitions. Word has length 24
[2020-09-24 18:18:46,369 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:18:46,369 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 81 transitions.
[2020-09-24 18:18:46,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-24 18:18:46,369 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 81 transitions.
[2020-09-24 18:18:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-24 18:18:46,370 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:18:46,370 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]
[2020-09-24 18:18:46,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 18:18:46,371 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:18:46,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:18:46,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1955200303, now seen corresponding path program 1 times
[2020-09-24 18:18:46,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:18:46,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491401464]
[2020-09-24 18:18:46,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:18:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:46,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:46,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-24 18:18:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580
[2020-09-24 18:18:46,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11
[2020-09-24 18:18:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-24 18:18:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-24 18:18:46,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:18:47,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:18:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:18:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:18:47,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:18:47,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:18:47,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:18:47,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 18:18:47,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:18:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:18:47,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:18:47,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:18:47,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:18:47,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 18:18:47,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491401464]
[2020-09-24 18:18:47,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:18:47,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2020-09-24 18:18:47,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667760320]
[2020-09-24 18:18:47,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 18:18:47,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:18:47,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 18:18:47,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2020-09-24 18:18:47,526 INFO L87 Difference]: Start difference. First operand 79 states and 81 transitions. Second operand 13 states.
[2020-09-24 18:18:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:18:48,457 INFO L93 Difference]: Finished difference Result 223 states and 229 transitions.
[2020-09-24 18:18:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2020-09-24 18:18:48,459 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31
[2020-09-24 18:18:48,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:18:48,462 INFO L225 Difference]: With dead ends: 223
[2020-09-24 18:18:48,462 INFO L226 Difference]: Without dead ends: 177
[2020-09-24 18:18:48,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506
[2020-09-24 18:18:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states.
[2020-09-24 18:18:48,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 93.
[2020-09-24 18:18:48,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states.
[2020-09-24 18:18:48,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions.
[2020-09-24 18:18:48,498 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 31
[2020-09-24 18:18:48,498 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:18:48,498 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions.
[2020-09-24 18:18:48,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 18:18:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions.
[2020-09-24 18:18:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-24 18:18:48,505 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:18:48,505 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]
[2020-09-24 18:18:48,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 18:18:48,506 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:18:48,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:18:48,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2043057935, now seen corresponding path program 1 times
[2020-09-24 18:18:48,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:18:48,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974174175]
[2020-09-24 18:18:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:18:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 18:18:48,543 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 18:18:48,543 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 18:18:48,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 18:18:48,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:18:48 BoogieIcfgContainer
[2020-09-24 18:18:48,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 18:18:48,595 INFO L168 Benchmark]: Toolchain (without parser) took 6407.80 ms. Allocated memory was 140.0 MB in the beginning and 248.0 MB in the end (delta: 108.0 MB). Free memory was 102.3 MB in the beginning and 93.9 MB in the end (delta: 8.5 MB). Peak memory consumption was 116.5 MB. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,599 INFO L168 Benchmark]: CDTParser took 0.31 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.99 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 171.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,604 INFO L168 Benchmark]: Boogie Preprocessor took 75.56 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 168.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,613 INFO L168 Benchmark]: RCFGBuilder took 739.72 ms. Allocated memory is still 203.9 MB. Free memory was 168.5 MB in the beginning and 119.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,614 INFO L168 Benchmark]: TraceAbstraction took 4856.24 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 118.6 MB in the beginning and 93.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB.
[2020-09-24 18:18:48,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31 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: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 722.99 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.6 MB in the beginning and 171.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 75.56 ms. Allocated memory is still 203.9 MB. Free memory was 171.3 MB in the beginning and 168.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 739.72 ms. Allocated memory is still 203.9 MB. Free memory was 168.5 MB in the beginning and 119.3 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 4856.24 ms. Allocated memory was 203.9 MB in the beginning and 248.0 MB in the end (delta: 44.0 MB). Free memory was 118.6 MB in the beginning and 93.9 MB in the end (delta: 24.7 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 1020]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L992] SLL* head = malloc(sizeof(SLL));
[L993] head->next = ((void*)0)
[L994] head->data = 0
[L996] SLL* x = head;
[L999] COND FALSE !(__VERIFIER_nondet_int())
[L1007] x->data = 1
[L1008] x->next = malloc(sizeof(SLL))
[L1009] EXPR x->next
[L1009] x->next->data = 2
[L1011] x = head
[L1013] COND FALSE !(!(((void*)0) != x))
[L1015] EXPR x->data
[L1015] COND FALSE !(1 != x->data)
[L1020] EXPR x->data
[L1020] COND TRUE !(2 == x->data)
[L1020] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 94 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 799 SDslu, 780 SDs, 0 SdLazy, 751 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred 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, 4 MinimizatonAttempts, 210 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 12297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...