/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/product-lines/minepump_spec3_product19.cil.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 18:00:53,739 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 18:00:53,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 18:00:53,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 18:00:53,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 18:00:53,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 18:00:53,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 18:00:53,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 18:00:53,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 18:00:53,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 18:00:53,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 18:00:53,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 18:00:53,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 18:00:53,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 18:00:53,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 18:00:53,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 18:00:53,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 18:00:53,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 18:00:53,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 18:00:53,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 18:00:53,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 18:00:53,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 18:00:53,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 18:00:53,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 18:00:53,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 18:00:53,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 18:00:53,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 18:00:53,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 18:00:53,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 18:00:53,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 18:00:54,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 18:00:54,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 18:00:54,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 18:00:54,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 18:00:54,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 18:00:54,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 18:00:54,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 18:00:54,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 18:00:54,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 18:00:54,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 18:00:54,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 18:00:54,056 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 18:00:54,206 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 18:00:54,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 18:00:54,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 18:00:54,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 18:00:54,226 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 18:00:54,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 18:00:54,227 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 18:00:54,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 18:00:54,228 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 18:00:54,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 18:00:54,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 18:00:54,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 18:00:54,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 18:00:54,229 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 18:00:54,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 18:00:54,230 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 18:00:54,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 18:00:54,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 18:00:54,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 18:00:54,231 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 18:00:54,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 18:00:54,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 18:00:54,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 18:00:54,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 18:00:54,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 18:00:54,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 18:00:54,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 18:00:54,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 18:00:54,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 18:00:54,233 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 18:00:54,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 18:00:54,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 18:00:54,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 18:00:54,826 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 18:00:54,826 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 18:00:54,827 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-24 18:00:54,939 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ef1d5b0d/dfa8b72a0fd0464ea55474a6b92d4d0d/FLAG20a8b9f1d
[2020-09-24 18:00:55,525 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 18:00:55,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c
[2020-09-24 18:00:55,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ef1d5b0d/dfa8b72a0fd0464ea55474a6b92d4d0d/FLAG20a8b9f1d
[2020-09-24 18:00:55,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ef1d5b0d/dfa8b72a0fd0464ea55474a6b92d4d0d
[2020-09-24 18:00:55,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 18:00:55,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 18:00:55,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 18:00:55,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 18:00:55,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 18:00:55,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:55" (1/1) ...
[2020-09-24 18:00:55,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:55, skipping insertion in model container
[2020-09-24 18:00:55,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:55" (1/1) ...
[2020-09-24 18:00:55,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 18:00:55,889 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 18:00:56,292 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:00:56,418 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 18:00:56,510 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 18:00:56,548 INFO L208 MainTranslator]: Completed translation
[2020-09-24 18:00:56,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56 WrapperNode
[2020-09-24 18:00:56,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 18:00:56,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 18:00:56,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 18:00:56,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 18:00:56,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (1/1) ...
[2020-09-24 18:00:56,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 18:00:56,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 18:00:56,683 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 18:00:56,683 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 18:00:56,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (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 18:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 18:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 18:00:56,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int
[2020-09-24 18:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2020-09-24 18:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one
[2020-09-24 18:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features
[2020-09-24 18:00:56,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers
[2020-09-24 18:00:56,791 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product
[2020-09-24 18:00:56,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg
[2020-09-24 18:00:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype
[2020-09-24 18:00:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2020-09-24 18:00:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2
[2020-09-24 18:00:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure setup
[2020-09-24 18:00:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest
[2020-09-24 18:00:56,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 18:00:56,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel
[2020-09-24 18:00:56,798 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2020-09-24 18:00:56,800 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-09-24 18:00:56,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-09-24 18:00:56,802 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment
[2020-09-24 18:00:56,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel
[2020-09-24 18:00:56,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry
[2020-09-24 18:00:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure test
[2020-09-24 18:00:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2020-09-24 18:00:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-09-24 18:00:56,804 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment
[2020-09-24 18:00:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump
[2020-09-24 18:00:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump
[2020-09-24 18:00:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm
[2020-09-24 18:00:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning
[2020-09-24 18:00:56,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump
[2020-09-24 18:00:56,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel
[2020-09-24 18:00:56,806 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_one
[2020-09-24 18:00:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure select_features
[2020-09-24 18:00:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers
[2020-09-24 18:00:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product
[2020-09-24 18:00:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning
[2020-09-24 18:00:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-09-24 18:00:56,808 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel
[2020-09-24 18:00:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1
[2020-09-24 18:00:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-09-24 18:00:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 18:00:56,809 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 18:00:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set
[2020-09-24 18:00:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 18:00:56,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int
[2020-09-24 18:00:56,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 18:00:56,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt
[2020-09-24 18:00:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg
[2020-09-24 18:00:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 18:00:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype
[2020-09-24 18:00:56,825 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2020-09-24 18:00:56,826 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2020-09-24 18:00:56,826 INFO L130 BoogieDeclarations]: Found specification of procedure printPump
[2020-09-24 18:00:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2020-09-24 18:00:56,828 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-09-24 18:00:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2
[2020-09-24 18:00:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup
[2020-09-24 18:00:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure test
[2020-09-24 18:00:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure runTest
[2020-09-24 18:00:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 18:00:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel
[2020-09-24 18:00:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment
[2020-09-24 18:00:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry
[2020-09-24 18:00:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem
[2020-09-24 18:00:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump
[2020-09-24 18:00:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump
[2020-09-24 18:00:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment
[2020-09-24 18:00:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-09-24 18:00:56,835 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel
[2020-09-24 18:00:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm
[2020-09-24 18:00:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 18:00:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-24 18:00:56,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 18:00:57,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 18:00:57,978 INFO L295 CfgBuilder]: Removed 5 assume(true) statements.
[2020-09-24 18:00:57,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:57 BoogieIcfgContainer
[2020-09-24 18:00:57,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 18:00:57,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 18:00:57,990 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 18:00:57,994 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 18:00:57,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:55" (1/3) ...
[2020-09-24 18:00:57,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fc8366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:57, skipping insertion in model container
[2020-09-24 18:00:57,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:56" (2/3) ...
[2020-09-24 18:00:57,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fc8366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:57, skipping insertion in model container
[2020-09-24 18:00:57,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:57" (3/3) ...
[2020-09-24 18:00:57,998 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c
[2020-09-24 18:00:58,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 18:00:58,022 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 18:00:58,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 18:00:58,087 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 18:00:58,088 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 18:00:58,088 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 18:00:58,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 18:00:58,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 18:00:58,089 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 18:00:58,089 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 18:00:58,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 18:00:58,122 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states.
[2020-09-24 18:00:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2020-09-24 18:00:58,142 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:00:58,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 18:00:58,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:00:58,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:00:58,154 INFO L82 PathProgramCache]: Analyzing trace with hash 2041023672, now seen corresponding path program 1 times
[2020-09-24 18:00:58,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:00:58,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844707899]
[2020-09-24 18:00:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:00:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:00:58,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:00:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:00,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:03,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:03,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186
[2020-09-24 18:01:03,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 18:01:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008
[2020-09-24 18:01:03,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:03,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129
[2020-09-24 18:01:03,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:03,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-24 18:01:04,093 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 18:01:04,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:01:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 18:01:04,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113
[2020-09-24 18:01:04,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:04,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:04,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 18:01:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:04,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 18:01:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:04,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:04,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 18:01:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:04,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 18:01:04,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:04,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 18:01:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:04,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:04,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2020-09-24 18:01:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:04,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:04,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:04,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 18:01:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:04,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 18:01:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:04,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:04,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:04,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:04,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:04,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:04,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:04,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:04,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:04,397 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 18:01:04,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844707899]
[2020-09-24 18:01:04,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:01:04,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 18:01:04,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957334262]
[2020-09-24 18:01:04,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 18:01:04,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:01:04,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 18:01:04,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 18:01:04,433 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-09-24 18:01:05,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:01:05,724 INFO L93 Difference]: Finished difference Result 449 states and 536 transitions.
[2020-09-24 18:01:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 18:01:05,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153
[2020-09-24 18:01:05,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:01:05,747 INFO L225 Difference]: With dead ends: 449
[2020-09-24 18:01:05,747 INFO L226 Difference]: Without dead ends: 282
[2020-09-24 18:01:05,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 18:01:05,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2020-09-24 18:01:05,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241.
[2020-09-24 18:01:05,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states.
[2020-09-24 18:01:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions.
[2020-09-24 18:01:05,863 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153
[2020-09-24 18:01:05,864 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:01:05,864 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions.
[2020-09-24 18:01:05,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 18:01:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions.
[2020-09-24 18:01:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 18:01:05,874 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:01:05,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 18:01:05,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 18:01:05,875 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:01:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:01:05,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1489723473, now seen corresponding path program 1 times
[2020-09-24 18:01:05,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:01:05,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276724084]
[2020-09-24 18:01:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:01:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:06,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:07,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:10,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187
[2020-09-24 18:01:10,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 18:01:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002
[2020-09-24 18:01:10,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128
[2020-09-24 18:01:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3
[2020-09-24 18:01:10,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,299 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 18:01:11,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:01:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 18:01:11,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121
[2020-09-24 18:01:11,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:11,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 18:01:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:11,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:11,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:11,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 18:01:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:11,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1
[2020-09-24 18:01:11,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:11,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 18:01:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:11,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 18:01:11,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:11,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:11,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 18:01:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:11,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:11,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:11,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2020-09-24 18:01:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2020-09-24 18:01:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:11,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:11,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142
[2020-09-24 18:01:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:11,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:11,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:11,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:11,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:11,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:11,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:11,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:11,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:11,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:11,577 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 18:01:11,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276724084]
[2020-09-24 18:01:11,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:01:11,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 18:01:11,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543246873]
[2020-09-24 18:01:11,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 18:01:11,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:01:11,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 18:01:11,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 18:01:11,592 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states.
[2020-09-24 18:01:12,264 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 18:01:13,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:01:13,182 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions.
[2020-09-24 18:01:13,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-24 18:01:13,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154
[2020-09-24 18:01:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:01:13,187 INFO L225 Difference]: With dead ends: 360
[2020-09-24 18:01:13,187 INFO L226 Difference]: Without dead ends: 265
[2020-09-24 18:01:13,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 18:01:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2020-09-24 18:01:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231.
[2020-09-24 18:01:13,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states.
[2020-09-24 18:01:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions.
[2020-09-24 18:01:13,233 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154
[2020-09-24 18:01:13,233 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:01:13,233 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions.
[2020-09-24 18:01:13,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 18:01:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions.
[2020-09-24 18:01:13,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2020-09-24 18:01:13,236 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:01:13,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:13,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 18:01:13,237 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:01:13,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:01:13,237 INFO L82 PathProgramCache]: Analyzing trace with hash -2140088415, now seen corresponding path program 1 times
[2020-09-24 18:01:13,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:01:13,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462548047]
[2020-09-24 18:01:13,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:01:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:13,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:13,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194
[2020-09-24 18:01:18,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 18:01:18,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4843
[2020-09-24 18:01:18,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 18:01:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82
[2020-09-24 18:01:18,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66
[2020-09-24 18:01:18,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:18,471 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 18:01:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:01:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 18:01:18,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241
[2020-09-24 18:01:18,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:18,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78
[2020-09-24 18:01:18,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:18,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 18:01:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:18,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:18,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:18,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:18,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:18,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 18:01:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:18,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:18,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:18,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:18,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 18:01:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:18,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 18:01:18,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:18,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 18:01:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:18,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 18:01:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:18,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:18,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:18,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2020-09-24 18:01:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:18,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:18,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:18,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:18,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:18,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 18:01:18,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141
[2020-09-24 18:01:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:18,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:18,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:18,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:18,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:18,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151
[2020-09-24 18:01:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:18,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:18,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:18,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:18,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:18,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:18,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:18,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:18,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:18,910 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 18:01:18,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462548047]
[2020-09-24 18:01:18,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:01:18,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 18:01:18,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71005370]
[2020-09-24 18:01:18,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 18:01:18,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:01:18,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 18:01:18,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 18:01:18,913 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 5 states.
[2020-09-24 18:01:19,414 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 18:01:20,161 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2020-09-24 18:01:21,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:01:21,689 INFO L93 Difference]: Finished difference Result 611 states and 701 transitions.
[2020-09-24 18:01:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-24 18:01:21,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163
[2020-09-24 18:01:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:01:21,699 INFO L225 Difference]: With dead ends: 611
[2020-09-24 18:01:21,700 INFO L226 Difference]: Without dead ends: 490
[2020-09-24 18:01:21,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-09-24 18:01:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states.
[2020-09-24 18:01:21,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 427.
[2020-09-24 18:01:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states.
[2020-09-24 18:01:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 476 transitions.
[2020-09-24 18:01:21,827 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 476 transitions. Word has length 163
[2020-09-24 18:01:21,828 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:01:21,828 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 476 transitions.
[2020-09-24 18:01:21,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 18:01:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 476 transitions.
[2020-09-24 18:01:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172
[2020-09-24 18:01:21,831 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:01:21,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 18:01:21,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 18:01:21,832 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:01:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:01:21,832 INFO L82 PathProgramCache]: Analyzing trace with hash -720243162, now seen corresponding path program 1 times
[2020-09-24 18:01:21,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:01:21,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857566610]
[2020-09-24 18:01:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:01:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:21,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:23,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:23,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206
[2020-09-24 18:01:23,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1761
[2020-09-24 18:01:23,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 18:01:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79
[2020-09-24 18:01:23,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111
[2020-09-24 18:01:23,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:23,943 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184
[2020-09-24 18:01:23,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 18:01:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85
[2020-09-24 18:01:24,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241
[2020-09-24 18:01:24,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75
[2020-09-24 18:01:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2020-09-24 18:01:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:24,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:24,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 18:01:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:24,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:24,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:24,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2020-09-24 18:01:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:24,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 18:01:24,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 18:01:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2020-09-24 18:01:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:24,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:24,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 18:01:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2020-09-24 18:01:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-24 18:01:24,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 18:01:24,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 18:01:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 18:01:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 18:01:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:24,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:24,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2020-09-24 18:01:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:24,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 18:01:24,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 18:01:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 18:01:24,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149
[2020-09-24 18:01:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 18:01:24,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 18:01:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 18:01:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 18:01:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159
[2020-09-24 18:01:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 18:01:24,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 18:01:24,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 18:01:24,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 18:01:24,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 18:01:24,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 18:01:24,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST
[2020-09-24 18:01:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 18:01:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8
[2020-09-24 18:01:24,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 18:01:24,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 18:01:24,469 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 18:01:24,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857566610]
[2020-09-24 18:01:24,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 18:01:24,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 18:01:24,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647517229]
[2020-09-24 18:01:24,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 18:01:24,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 18:01:24,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 18:01:24,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-24 18:01:24,478 INFO L87 Difference]: Start difference. First operand 427 states and 476 transitions. Second operand 9 states.
[2020-09-24 18:01:25,044 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 18:01:26,864 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 18:01:27,519 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190
[2020-09-24 18:01:27,964 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 18:01:28,314 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186
[2020-09-24 18:01:28,632 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190
[2020-09-24 18:01:28,937 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191
[2020-09-24 18:01:29,284 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2020-09-24 18:01:30,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 18:01:30,029 INFO L93 Difference]: Finished difference Result 1228 states and 1519 transitions.
[2020-09-24 18:01:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-24 18:01:30,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171
[2020-09-24 18:01:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 18:01:30,039 INFO L225 Difference]: With dead ends: 1228
[2020-09-24 18:01:30,040 INFO L226 Difference]: Without dead ends: 911
[2020-09-24 18:01:30,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2020-09-24 18:01:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states.
[2020-09-24 18:01:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 723.
[2020-09-24 18:01:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states.
[2020-09-24 18:01:30,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 829 transitions.
[2020-09-24 18:01:30,167 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 829 transitions. Word has length 171
[2020-09-24 18:01:30,167 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 18:01:30,167 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 829 transitions.
[2020-09-24 18:01:30,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 18:01:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 829 transitions.
[2020-09-24 18:01:30,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177
[2020-09-24 18:01:30,172 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 18:01:30,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 18:01:30,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 18:01:30,173 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 18:01:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 18:01:30,173 INFO L82 PathProgramCache]: Analyzing trace with hash 466047794, now seen corresponding path program 1 times
[2020-09-24 18:01:30,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 18:01:30,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276346634]
[2020-09-24 18:01:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 18:01:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 18:01:30,236 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 18:01:30,237 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 18:01:30,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 18:01:30,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:01:30 BoogieIcfgContainer
[2020-09-24 18:01:30,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 18:01:30,271 INFO L168 Benchmark]: Toolchain (without parser) took 34457.84 ms. Allocated memory was 148.4 MB in the beginning and 662.2 MB in the end (delta: 513.8 MB). Free memory was 104.0 MB in the beginning and 436.5 MB in the end (delta: -332.5 MB). Peak memory consumption was 181.3 MB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,272 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.29 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 103.4 MB in the beginning and 176.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,274 INFO L168 Benchmark]: Boogie Preprocessor took 131.65 ms. Allocated memory is still 207.1 MB. Free memory was 176.8 MB in the beginning and 172.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,274 INFO L168 Benchmark]: RCFGBuilder took 1306.21 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 172.8 MB in the beginning and 177.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,275 INFO L168 Benchmark]: TraceAbstraction took 32278.78 ms. Allocated memory was 237.0 MB in the beginning and 662.2 MB in the end (delta: 425.2 MB). Free memory was 177.2 MB in the beginning and 436.5 MB in the end (delta: -259.3 MB). Peak memory consumption was 165.9 MB. Max. memory is 7.1 GB.
[2020-09-24 18:01:30,279 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 148.4 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 731.29 ms. Allocated memory was 148.4 MB in the beginning and 207.1 MB in the end (delta: 58.7 MB). Free memory was 103.4 MB in the beginning and 176.8 MB in the end (delta: -73.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 131.65 ms. Allocated memory is still 207.1 MB. Free memory was 176.8 MB in the beginning and 172.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 1306.21 ms. Allocated memory was 207.1 MB in the beginning and 237.0 MB in the end (delta: 29.9 MB). Free memory was 172.8 MB in the beginning and 177.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 32278.78 ms. Allocated memory was 237.0 MB in the beginning and 662.2 MB in the end (delta: 425.2 MB). Free memory was 177.2 MB in the beginning and 436.5 MB in the end (delta: -259.3 MB). Peak memory consumption was 165.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L293] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
[L490] int cleanupTimeShifts = 4;
[L594] int waterLevel = 1;
[L595] int methaneLevelCritical = 0;
[L753] int pumpRunning = 0;
[L754] int systemActive = 1;
[L568] int retValue_acc ;
[L569] int tmp ;
[L573] FCALL select_helpers()
[L574] FCALL select_features()
[L575] CALL, EXPR valid_product()
[L78] int retValue_acc ;
[L81] retValue_acc = 1
[L82] return (retValue_acc);
[L575] RET, EXPR valid_product()
[L575] tmp = valid_product()
[L577] COND TRUE \read(tmp)
[L579] FCALL setup()
[L580] CALL runTest()
[L562] CALL test()
[L685] int splverifierCounter ;
[L686] int tmp ;
[L687] int tmp___0 ;
[L688] int tmp___1 ;
[L689] int tmp___2 ;
[L692] splverifierCounter = 0
[L694] COND TRUE 1
[L696] COND TRUE splverifierCounter < 4
[L702] tmp = __VERIFIER_nondet_int()
[L704] COND TRUE \read(tmp)
[L706] CALL waterRise()
[L612] COND TRUE waterLevel < 2
[L613] waterLevel = waterLevel + 1
[L706] RET waterRise()
[L712] tmp___0 = __VERIFIER_nondet_int()
[L714] COND FALSE !(\read(tmp___0))
[L722] tmp___2 = __VERIFIER_nondet_int()
[L724] COND TRUE \read(tmp___2)
[L739] CALL timeShift()
[L760] COND FALSE !(\read(pumpRunning))
[L767] COND TRUE \read(systemActive)
[L769] CALL processEnvironment()
[L789] int tmp ;
[L792] COND FALSE !(\read(pumpRunning))
[L807] FCALL processEnvironment__wrappee__base()
[L769] RET processEnvironment()
[L775] CALL __utac_acc__Specification3_spec__1()
[L91] int tmp ;
[L92] int tmp___0 ;
[L93] int tmp___1 ;
[L97] CALL, EXPR isMethaneLevelCritical()
[L633] int retValue_acc ;
[L636] retValue_acc = methaneLevelCritical
[L637] return (retValue_acc);
[L97] RET, EXPR isMethaneLevelCritical()
[L97] tmp = isMethaneLevelCritical()
[L99] COND FALSE !(\read(tmp))
[L103] CALL, EXPR getWaterLevel()
[L665] int retValue_acc ;
[L668] retValue_acc = waterLevel
[L669] return (retValue_acc);
[L103] RET, EXPR getWaterLevel()
[L103] tmp___0 = getWaterLevel()
[L105] COND TRUE tmp___0 == 2
[L107] CALL, EXPR isPumpRunning()
[L841] int retValue_acc ;
[L844] retValue_acc = pumpRunning
[L845] return (retValue_acc);
[L107] RET, EXPR isPumpRunning()
[L107] tmp___1 = isPumpRunning()
[L109] COND FALSE !(\read(tmp___1))
[L113] CALL __automaton_fail()
[L44] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 895 SDtfs, 1147 SDslu, 912 SDs, 0 SdLazy, 2045 SolverSat, 349 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 326 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 258744 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...