/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/array-crafted/zero_sum_const5.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 10:01:45,659 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 10:01:45,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 10:01:45,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 10:01:45,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 10:01:45,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 10:01:45,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 10:01:45,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 10:01:45,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 10:01:45,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 10:01:45,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 10:01:45,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 10:01:45,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 10:01:45,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 10:01:45,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 10:01:45,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 10:01:45,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 10:01:45,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 10:01:45,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 10:01:45,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 10:01:45,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 10:01:45,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 10:01:45,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 10:01:45,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 10:01:45,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-31 10:01:45,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-31 10:01:45,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-31 10:01:45,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-31 10:01:45,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-31 10:01:45,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-31 10:01:45,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-31 10:01:45,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-31 10:01:45,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-31 10:01:45,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-31 10:01:45,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-31 10:01:45,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-31 10:01:45,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-31 10:01:45,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-31 10:01:45,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-31 10:01:45,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-31 10:01:45,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 10:01:45,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-01-31 10:01:45,816 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 10:01:45,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 10:01:45,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 10:01:45,819 INFO L138 SettingsManager]: * sizeof long=4
[2022-01-31 10:01:45,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 10:01:45,819 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-01-31 10:01:45,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 10:01:45,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 10:01:45,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 10:01:45,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 10:01:45,821 INFO L138 SettingsManager]: * sizeof long double=12
[2022-01-31 10:01:45,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 10:01:45,821 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 10:01:45,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 10:01:45,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 10:01:45,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 10:01:45,822 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 10:01:45,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 10:01:45,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 10:01:45,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 10:01:45,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-01-31 10:01:45,823 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-31 10:01:45,823 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 10:01:46,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 10:01:46,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 10:01:46,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 10:01:46,102 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 10:01:46,103 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 10:01:46,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum_const5.c
[2022-01-31 10:01:46,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670c2ce25/1f487e594c3143b886e585288c18c2e4/FLAG92f34204e
[2022-01-31 10:01:46,561 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 10:01:46,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_const5.c
[2022-01-31 10:01:46,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670c2ce25/1f487e594c3143b886e585288c18c2e4/FLAG92f34204e
[2022-01-31 10:01:46,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/670c2ce25/1f487e594c3143b886e585288c18c2e4
[2022-01-31 10:01:46,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 10:01:46,986 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-31 10:01:46,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 10:01:46,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 10:01:46,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 10:01:46,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:01:46" (1/1) ...
[2022-01-31 10:01:46,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e93955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:46, skipping insertion in model container
[2022-01-31 10:01:46,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:01:46" (1/1) ...
[2022-01-31 10:01:47,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 10:01:47,020 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 10:01:47,153 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_const5.c[406,419]
[2022-01-31 10:01:47,187 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 10:01:47,194 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 10:01:47,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_const5.c[406,419]
[2022-01-31 10:01:47,211 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 10:01:47,223 INFO L208 MainTranslator]: Completed translation
[2022-01-31 10:01:47,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47 WrapperNode
[2022-01-31 10:01:47,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 10:01:47,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 10:01:47,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 10:01:47,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 10:01:47,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 10:01:47,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 10:01:47,256 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 10:01:47,257 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 10:01:47,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 10:01:47,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:01:47,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-01-31 10:01:47,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-01-31 10:01:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 10:01:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 10:01:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 10:01:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-31 10:01:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 10:01:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 10:01:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-01-31 10:01:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 10:01:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 10:01:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 10:01:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-31 10:01:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 10:01:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long
[2022-01-31 10:01:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2022-01-31 10:01:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 10:01:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-01-31 10:01:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 10:01:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 10:01:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 10:01:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 10:01:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 10:01:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 10:01:47,447 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 10:01:47,448 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 10:01:47,619 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 10:01:47,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 10:01:47,625 INFO L299 CfgBuilder]: Removed 11 assume(true) statements.
[2022-01-31 10:01:47,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:01:47 BoogieIcfgContainer
[2022-01-31 10:01:47,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 10:01:47,628 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-31 10:01:47,628 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-01-31 10:01:47,640 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-01-31 10:01:47,643 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:01:47" (1/1) ...
[2022-01-31 10:01:47,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:01:47 BasicIcfg
[2022-01-31 10:01:47,679 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-31 10:01:47,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 10:01:47,685 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 10:01:47,696 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 10:01:47,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:01:46" (1/4) ...
[2022-01-31 10:01:47,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3562f5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:01:47, skipping insertion in model container
[2022-01-31 10:01:47,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:01:47" (2/4) ...
[2022-01-31 10:01:47,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3562f5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:01:47, skipping insertion in model container
[2022-01-31 10:01:47,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:01:47" (3/4) ...
[2022-01-31 10:01:47,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3562f5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:01:47, skipping insertion in model container
[2022-01-31 10:01:47,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 10:01:47" (4/4) ...
[2022-01-31 10:01:47,699 INFO L111 eAbstractionObserver]: Analyzing ICFG zero_sum_const5.cJordan
[2022-01-31 10:01:47,704 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-01-31 10:01:47,704 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 10:01:47,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 10:01:47,754 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2022-01-31 10:01:47,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 10:01:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 45 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-01-31 10:01:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2022-01-31 10:01:47,779 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:47,779 INFO L514 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]
[2022-01-31 10:01:47,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:47,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash -266275388, now seen corresponding path program 1 times
[2022-01-31 10:01:47,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:47,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959535268]
[2022-01-31 10:01:47,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:47,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:47,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:01:47,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:47,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959535268]
[2022-01-31 10:01:47,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959535268] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 10:01:47,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 10:01:47,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 10:01:47,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693547599]
[2022-01-31 10:01:47,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 10:01:47,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 10:01:47,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:01:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 10:01:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 10:01:48,033 INFO L87 Difference]: Start difference. First operand has 51 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 45 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:01:48,143 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions.
[2022-01-31 10:01:48,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 10:01:48,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32
[2022-01-31 10:01:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:01:48,154 INFO L225 Difference]: With dead ends: 51
[2022-01-31 10:01:48,154 INFO L226 Difference]: Without dead ends: 44
[2022-01-31 10:01:48,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 10:01:48,159 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 10:01:48,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 66 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 10:01:48,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2022-01-31 10:01:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2022-01-31 10:01:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions.
[2022-01-31 10:01:48,188 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 32
[2022-01-31 10:01:48,189 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:01:48,189 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions.
[2022-01-31 10:01:48,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions.
[2022-01-31 10:01:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2022-01-31 10:01:48,190 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:48,190 INFO L514 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]
[2022-01-31 10:01:48,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 10:01:48,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:48,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1881284850, now seen corresponding path program 1 times
[2022-01-31 10:01:48,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:48,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236946224]
[2022-01-31 10:01:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:48,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:01:48,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:48,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236946224]
[2022-01-31 10:01:48,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236946224] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 10:01:48,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 10:01:48,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-31 10:01:48,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547610951]
[2022-01-31 10:01:48,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 10:01:48,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-31 10:01:48,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:01:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-31 10:01:48,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-31 10:01:48,274 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:01:48,415 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions.
[2022-01-31 10:01:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-01-31 10:01:48,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32
[2022-01-31 10:01:48,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:01:48,417 INFO L225 Difference]: With dead ends: 46
[2022-01-31 10:01:48,417 INFO L226 Difference]: Without dead ends: 46
[2022-01-31 10:01:48,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-31 10:01:48,418 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 10:01:48,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 10:01:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2022-01-31 10:01:48,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45.
[2022-01-31 10:01:48,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.275) internal successors, (51), 40 states have internal predecessors, (51), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions.
[2022-01-31 10:01:48,425 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 32
[2022-01-31 10:01:48,425 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:01:48,425 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions.
[2022-01-31 10:01:48,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,425 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions.
[2022-01-31 10:01:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2022-01-31 10:01:48,426 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:48,427 INFO L514 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]
[2022-01-31 10:01:48,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-01-31 10:01:48,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:48,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1897234187, now seen corresponding path program 1 times
[2022-01-31 10:01:48,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:48,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355813208]
[2022-01-31 10:01:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:48,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-01-31 10:01:48,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:48,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355813208]
[2022-01-31 10:01:48,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355813208] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 10:01:48,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 10:01:48,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-01-31 10:01:48,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497334922]
[2022-01-31 10:01:48,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 10:01:48,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-01-31 10:01:48,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:01:48,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-01-31 10:01:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-01-31 10:01:48,505 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:01:48,641 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions.
[2022-01-31 10:01:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-01-31 10:01:48,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34
[2022-01-31 10:01:48,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:01:48,645 INFO L225 Difference]: With dead ends: 66
[2022-01-31 10:01:48,646 INFO L226 Difference]: Without dead ends: 66
[2022-01-31 10:01:48,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2022-01-31 10:01:48,653 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 49 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 10:01:48,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 31 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 10:01:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2022-01-31 10:01:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55.
[2022-01-31 10:01:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.22) internal successors, (61), 50 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions.
[2022-01-31 10:01:48,667 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 34
[2022-01-31 10:01:48,667 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:01:48,667 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions.
[2022-01-31 10:01:48,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions.
[2022-01-31 10:01:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2022-01-31 10:01:48,668 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:48,669 INFO L514 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]
[2022-01-31 10:01:48,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-01-31 10:01:48,669 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:48,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1210697559, now seen corresponding path program 1 times
[2022-01-31 10:01:48,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:48,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824867997]
[2022-01-31 10:01:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:48,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2022-01-31 10:01:48,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:48,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824867997]
[2022-01-31 10:01:48,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824867997] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:01:48,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888277483]
[2022-01-31 10:01:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:48,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:01:48,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:01:48,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:01:48,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-01-31 10:01:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:48,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-01-31 10:01:48,903 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:01:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2022-01-31 10:01:49,131 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:01:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2022-01-31 10:01:49,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888277483] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:01:49,329 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:01:49,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8
[2022-01-31 10:01:49,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619773915]
[2022-01-31 10:01:49,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:01:49,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-01-31 10:01:49,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:01:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-01-31 10:01:49,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-01-31 10:01:49,331 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:49,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:01:49,460 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions.
[2022-01-31 10:01:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-01-31 10:01:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54
[2022-01-31 10:01:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:01:49,462 INFO L225 Difference]: With dead ends: 58
[2022-01-31 10:01:49,462 INFO L226 Difference]: Without dead ends: 58
[2022-01-31 10:01:49,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-01-31 10:01:49,472 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 10:01:49,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 54 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 10:01:49,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states.
[2022-01-31 10:01:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57.
[2022-01-31 10:01:49,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions.
[2022-01-31 10:01:49,483 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 54
[2022-01-31 10:01:49,484 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:01:49,484 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions.
[2022-01-31 10:01:49,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions.
[2022-01-31 10:01:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2022-01-31 10:01:49,485 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:49,485 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 10:01:49,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-01-31 10:01:49,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:01:49,708 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2002033556, now seen corresponding path program 2 times
[2022-01-31 10:01:49,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527397042]
[2022-01-31 10:01:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:49,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2022-01-31 10:01:49,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:49,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527397042]
[2022-01-31 10:01:49,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527397042] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:01:49,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570624689]
[2022-01-31 10:01:49,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-01-31 10:01:49,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:01:49,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:01:49,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:01:49,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-01-31 10:01:49,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-01-31 10:01:49,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-31 10:01:49,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-01-31 10:01:49,881 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:01:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2022-01-31 10:01:50,020 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:01:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2022-01-31 10:01:50,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570624689] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:01:50,149 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:01:50,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9
[2022-01-31 10:01:50,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933002987]
[2022-01-31 10:01:50,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:01:50,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2022-01-31 10:01:50,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:01:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2022-01-31 10:01:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2022-01-31 10:01:50,151 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:01:50,332 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions.
[2022-01-31 10:01:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-01-31 10:01:50,333 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56
[2022-01-31 10:01:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:01:50,338 INFO L225 Difference]: With dead ends: 88
[2022-01-31 10:01:50,338 INFO L226 Difference]: Without dead ends: 88
[2022-01-31 10:01:50,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110
[2022-01-31 10:01:50,340 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 56 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 10:01:50,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 39 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 10:01:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states.
[2022-01-31 10:01:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 77.
[2022-01-31 10:01:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 72 states have internal predecessors, (83), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:50,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 87 transitions.
[2022-01-31 10:01:50,356 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 87 transitions. Word has length 56
[2022-01-31 10:01:50,356 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:01:50,356 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 87 transitions.
[2022-01-31 10:01:50,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:01:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 87 transitions.
[2022-01-31 10:01:50,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2022-01-31 10:01:50,358 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:01:50,358 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 10:01:50,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-01-31 10:01:50,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:01:50,559 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:01:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:01:50,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1546517856, now seen corresponding path program 3 times
[2022-01-31 10:01:50,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:01:50,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900648238]
[2022-01-31 10:01:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:01:50,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:01:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:52,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:01:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:01:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:01:52,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:01:52,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900648238]
[2022-01-31 10:01:52,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900648238] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:01:52,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960225633]
[2022-01-31 10:01:52,251 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-01-31 10:01:52,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:01:52,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:01:52,256 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:01:52,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-01-31 10:01:52,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2022-01-31 10:01:52,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-31 10:01:52,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 100 conjunts are in the unsatisfiable core
[2022-01-31 10:01:52,346 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:01:54,737 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-01-31 10:01:54,738 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 16
[2022-01-31 10:01:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:01:54,962 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:02:05,684 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-01-31 10:02:05,685 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 103
[2022-01-31 10:02:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:02:08,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960225633] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:02:08,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:02:08,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 29, 33] total 74
[2022-01-31 10:02:08,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441089667]
[2022-01-31 10:02:08,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:02:08,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states
[2022-01-31 10:02:08,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:02:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants.
[2022-01-31 10:02:08,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=484, Invalid=4917, Unknown=1, NotChecked=0, Total=5402
[2022-01-31 10:02:08,802 INFO L87 Difference]: Start difference. First operand 77 states and 87 transitions. Second operand has 74 states, 74 states have (on average 2.7972972972972974) internal successors, (207), 71 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:02:14,122 INFO L93 Difference]: Finished difference Result 264 states and 305 transitions.
[2022-01-31 10:02:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states.
[2022-01-31 10:02:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.7972972972972974) internal successors, (207), 71 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76
[2022-01-31 10:02:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:02:14,126 INFO L225 Difference]: With dead ends: 264
[2022-01-31 10:02:14,126 INFO L226 Difference]: Without dead ends: 259
[2022-01-31 10:02:14,133 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 110 SyntacticMatches, 55 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 9 DeprecatedPredicates, 6809 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=1513, Invalid=16042, Unknown=1, NotChecked=0, Total=17556
[2022-01-31 10:02:14,133 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 84 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1997 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-01-31 10:02:14,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 311 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1164 Invalid, 0 Unknown, 1997 Unchecked, 0.6s Time]
[2022-01-31 10:02:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2022-01-31 10:02:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 130.
[2022-01-31 10:02:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.16) internal successors, (145), 125 states have internal predecessors, (145), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions.
[2022-01-31 10:02:14,142 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 76
[2022-01-31 10:02:14,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:02:14,143 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions.
[2022-01-31 10:02:14,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.7972972972972974) internal successors, (207), 71 states have internal predecessors, (207), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions.
[2022-01-31 10:02:14,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79
[2022-01-31 10:02:14,144 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:02:14,144 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 10:02:14,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-01-31 10:02:14,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:14,360 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:02:14,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:02:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1057330046, now seen corresponding path program 4 times
[2022-01-31 10:02:14,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:02:14,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636605028]
[2022-01-31 10:02:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:02:14,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:02:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:14,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:02:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2022-01-31 10:02:14,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:02:14,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636605028]
[2022-01-31 10:02:14,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636605028] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:02:14,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677023855]
[2022-01-31 10:02:14,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-01-31 10:02:14,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:14,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:02:14,462 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:02:14,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-01-31 10:02:14,529 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-01-31 10:02:14,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-31 10:02:14,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-01-31 10:02:14,541 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:02:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2022-01-31 10:02:14,713 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:02:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2022-01-31 10:02:14,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677023855] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:02:14,835 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:02:14,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 15
[2022-01-31 10:02:14,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143281938]
[2022-01-31 10:02:14,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:02:14,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-01-31 10:02:14,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:02:14,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-01-31 10:02:14,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210
[2022-01-31 10:02:14,837 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:02:15,168 INFO L93 Difference]: Finished difference Result 232 states and 251 transitions.
[2022-01-31 10:02:15,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-01-31 10:02:15,168 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78
[2022-01-31 10:02:15,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:02:15,170 INFO L225 Difference]: With dead ends: 232
[2022-01-31 10:02:15,170 INFO L226 Difference]: Without dead ends: 171
[2022-01-31 10:02:15,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 153 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342
[2022-01-31 10:02:15,171 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 166 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-31 10:02:15,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 56 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-01-31 10:02:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2022-01-31 10:02:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 145.
[2022-01-31 10:02:15,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 140 states have (on average 1.1357142857142857) internal successors, (159), 140 states have internal predecessors, (159), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 163 transitions.
[2022-01-31 10:02:15,191 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 163 transitions. Word has length 78
[2022-01-31 10:02:15,192 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:02:15,192 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 163 transitions.
[2022-01-31 10:02:15,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.6) internal successors, (69), 14 states have internal predecessors, (69), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 163 transitions.
[2022-01-31 10:02:15,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2022-01-31 10:02:15,193 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:02:15,193 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 10:02:15,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-01-31 10:02:15,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:15,418 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:02:15,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:02:15,419 INFO L85 PathProgramCache]: Analyzing trace with hash 498489947, now seen corresponding path program 5 times
[2022-01-31 10:02:15,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:02:15,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597779226]
[2022-01-31 10:02:15,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:02:15,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:02:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:02:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2022-01-31 10:02:15,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:02:15,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597779226]
[2022-01-31 10:02:15,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597779226] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:02:15,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779391744]
[2022-01-31 10:02:15,521 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-01-31 10:02:15,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:15,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:02:15,524 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:02:15,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-01-31 10:02:15,643 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2022-01-31 10:02:15,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-31 10:02:15,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-01-31 10:02:15,646 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:02:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2022-01-31 10:02:15,799 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:02:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2022-01-31 10:02:15,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779391744] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:02:15,943 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:02:15,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 15
[2022-01-31 10:02:15,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340880305]
[2022-01-31 10:02:15,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:02:15,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-01-31 10:02:15,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:02:15,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-01-31 10:02:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210
[2022-01-31 10:02:15,944 INFO L87 Difference]: Start difference. First operand 145 states and 163 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 10:02:16,275 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions.
[2022-01-31 10:02:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2022-01-31 10:02:16,275 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80
[2022-01-31 10:02:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 10:02:16,276 INFO L225 Difference]: With dead ends: 109
[2022-01-31 10:02:16,276 INFO L226 Difference]: Without dead ends: 109
[2022-01-31 10:02:16,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462
[2022-01-31 10:02:16,277 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 116 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-31 10:02:16,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 57 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2022-01-31 10:02:16,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2022-01-31 10:02:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 99.
[2022-01-31 10:02:16,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 94 states have (on average 1.1170212765957446) internal successors, (105), 94 states have internal predecessors, (105), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions.
[2022-01-31 10:02:16,281 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 80
[2022-01-31 10:02:16,281 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 10:02:16,281 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions.
[2022-01-31 10:02:16,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 14 states have internal predecessors, (100), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:02:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions.
[2022-01-31 10:02:16,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99
[2022-01-31 10:02:16,283 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 10:02:16,283 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 10:02:16,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-01-31 10:02:16,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:16,500 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 10:02:16,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 10:02:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash 850620713, now seen corresponding path program 6 times
[2022-01-31 10:02:16,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 10:02:16,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98948841]
[2022-01-31 10:02:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 10:02:16,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 10:02:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:20,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 10:02:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 10:02:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:02:20,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 10:02:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98948841]
[2022-01-31 10:02:20,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98948841] provided 0 perfect and 1 imperfect interpolant sequences
[2022-01-31 10:02:20,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663023035]
[2022-01-31 10:02:20,796 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-01-31 10:02:20,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:02:20,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 10:02:20,800 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-01-31 10:02:20,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-01-31 10:02:20,891 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2022-01-31 10:02:20,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-01-31 10:02:20,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 135 conjunts are in the unsatisfiable core
[2022-01-31 10:02:20,900 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 10:02:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:02:25,680 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-01-31 10:12:11,326 INFO L353 Elim1Store]: treesize reduction 1269, result has 10.5 percent of original size
[2022-01-31 10:12:11,326 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 256 treesize of output 187
[2022-01-31 10:12:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-01-31 10:12:13,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663023035] provided 0 perfect and 2 imperfect interpolant sequences
[2022-01-31 10:12:13,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-01-31 10:12:13,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 43, 77] total 174
[2022-01-31 10:12:13,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297689843]
[2022-01-31 10:12:13,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-01-31 10:12:13,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 174 states
[2022-01-31 10:12:13,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 10:12:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants.
[2022-01-31 10:12:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1755, Invalid=28151, Unknown=196, NotChecked=0, Total=30102
[2022-01-31 10:12:13,259 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand has 174 states, 174 states have (on average 1.5747126436781609) internal successors, (274), 170 states have internal predecessors, (274), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 10:12:22,967 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2022-01-31 10:12:22,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101
[2022-01-31 10:12:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-01-31 10:12:22,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 83 SyntacticMatches, 24 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13803 ImplicationChecksByTransitivity, 570.4s TimeCoverageRelationStatistics Valid=2388, Invalid=33326, Unknown=196, NotChecked=0, Total=35910
[2022-01-31 10:12:22,972 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 649 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2022-01-31 10:12:22,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 242 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 490 Invalid, 0 Unknown, 649 Unchecked, 0.3s Time]
[2022-01-31 10:12:22,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2022-01-31 10:12:23,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 10:12:23,181 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:258)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:86)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.<init>(PredicateUnifier.java:773)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.<init>(NestedWordAutomatonReachableStates.java:960)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.<init>(NestedWordAutomatonReachableStates.java:182)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137)
at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.<init>(Difference.java:90)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:156)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239)
... 50 more
[2022-01-31 10:12:23,185 INFO L158 Benchmark]: Toolchain (without parser) took 636198.45ms. Allocated memory was 179.3MB in the beginning and 354.4MB in the end (delta: 175.1MB). Free memory was 124.1MB in the beginning and 140.4MB in the end (delta: -16.3MB). Peak memory consumption was 159.8MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,185 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 10:12:23,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.65ms. Allocated memory is still 179.3MB. Free memory was 123.9MB in the beginning and 149.5MB in the end (delta: -25.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,185 INFO L158 Benchmark]: Boogie Preprocessor took 31.38ms. Allocated memory is still 179.3MB. Free memory was 149.5MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,186 INFO L158 Benchmark]: RCFGBuilder took 370.76ms. Allocated memory is still 179.3MB. Free memory was 147.4MB in the beginning and 133.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,186 INFO L158 Benchmark]: IcfgTransformer took 51.37ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 131.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,186 INFO L158 Benchmark]: TraceAbstraction took 635499.34ms. Allocated memory was 179.3MB in the beginning and 354.4MB in the end (delta: 175.1MB). Free memory was 131.6MB in the beginning and 140.4MB in the end (delta: -8.7MB). Peak memory consumption was 167.4MB. Max. memory is 8.0GB.
[2022-01-31 10:12:23,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 140.9MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 232.65ms. Allocated memory is still 179.3MB. Free memory was 123.9MB in the beginning and 149.5MB in the end (delta: -25.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 31.38ms. Allocated memory is still 179.3MB. Free memory was 149.5MB in the beginning and 147.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 370.76ms. Allocated memory is still 179.3MB. Free memory was 147.4MB in the beginning and 133.7MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB.
* IcfgTransformer took 51.37ms. Allocated memory is still 179.3MB. Free memory was 133.2MB in the beginning and 131.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 635499.34ms. Allocated memory was 179.3MB in the beginning and 354.4MB in the end (delta: 175.1MB). Free memory was 131.6MB in the beginning and 140.4MB in the end (delta: -8.7MB). Peak memory consumption was 167.4MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...