/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/nla-digbench-scaling/geo3-ll_unwindbound10.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-34549b5
[2022-04-06 07:02:50,934 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-04-06 07:02:50,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-06 07:02:50,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-06 07:02:50,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-06 07:02:50,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-06 07:02:50,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-06 07:02:50,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-06 07:02:50,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-06 07:02:50,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-06 07:02:50,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-04-06 07:02:50,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-06 07:02:50,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-06 07:02:50,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-06 07:02:50,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-06 07:02:50,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-06 07:02:50,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-06 07:02:50,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-06 07:02:50,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-06 07:02:50,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-06 07:02:50,977 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-06 07:02:50,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-06 07:02:50,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-06 07:02:50,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-04-06 07:02:50,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-06 07:02:50,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-06 07:02:50,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-06 07:02:50,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-06 07:02:50,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-06 07:02:50,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-06 07:02:50,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-06 07:02:50,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-06 07:02:50,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-06 07:02:50,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-06 07:02:50,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-06 07:02:50,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-06 07:02:50,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-06 07:02:50,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-06 07:02:50,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-06 07:02:50,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-06 07:02:50,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-06 07:02:50,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-04-06 07:02:50,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-04-06 07:02:51,004 INFO L113 SettingsManager]: Loading preferences was successful
[2022-04-06 07:02:51,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-06 07:02:51,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * sizeof long=4
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-04-06 07:02:51,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * sizeof long double=12
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-04-06 07:02:51,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-04-06 07:02:51,007 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-04-06 07:02:51,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-04-06 07:02:51,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 07:02:51,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-06 07:02:51,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-04-06 07:02:51,008 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-04-06 07:02:51,008 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-04-06 07:02:51,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-06 07:02:51,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-06 07:02:51,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-06 07:02:51,189 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-04-06 07:02:51,192 INFO L275 PluginConnector]: CDTParser initialized
[2022-04-06 07:02:51,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound10.c
[2022-04-06 07:02:51,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56243f20d/a70de9ec702d4e39a959104826c24ef8/FLAG52858bd9a
[2022-04-06 07:02:51,577 INFO L306 CDTParser]: Found 1 translation units.
[2022-04-06 07:02:51,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound10.c
[2022-04-06 07:02:51,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56243f20d/a70de9ec702d4e39a959104826c24ef8/FLAG52858bd9a
[2022-04-06 07:02:52,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56243f20d/a70de9ec702d4e39a959104826c24ef8
[2022-04-06 07:02:52,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-06 07:02:52,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-04-06 07:02:52,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-06 07:02:52,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-06 07:02:52,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-06 07:02:52,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8bb2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52, skipping insertion in model container
[2022-04-06 07:02:52,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-04-06 07:02:52,044 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-04-06 07:02:52,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538]
[2022-04-06 07:02:52,164 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 07:02:52,169 INFO L203 MainTranslator]: Completed pre-run
[2022-04-06 07:02:52,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo3-ll_unwindbound10.c[525,538]
[2022-04-06 07:02:52,180 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-04-06 07:02:52,187 INFO L208 MainTranslator]: Completed translation
[2022-04-06 07:02:52,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52 WrapperNode
[2022-04-06 07:02:52,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-06 07:02:52,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-06 07:02:52,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-06 07:02:52,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-04-06 07:02:52,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-06 07:02:52,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-06 07:02:52,206 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-04-06 07:02:52,206 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-04-06 07:02:52,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-06 07:02:52,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:52,234 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)
[2022-04-06 07:02:52,235 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
[2022-04-06 07:02:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-04-06 07:02:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-06 07:02:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-04-06 07:02:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-04-06 07:02:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-04-06 07:02:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-04-06 07:02:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-04-06 07:02:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-06 07:02:52,297 INFO L234 CfgBuilder]: Building ICFG
[2022-04-06 07:02:52,298 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-06 07:02:52,386 INFO L275 CfgBuilder]: Performing block encoding
[2022-04-06 07:02:52,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-06 07:02:52,391 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-04-06 07:02:52,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 07:02:52 BoogieIcfgContainer
[2022-04-06 07:02:52,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-06 07:02:52,393 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-04-06 07:02:52,393 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-04-06 07:02:52,393 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-04-06 07:02:52,395 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 07:02:52" (1/1) ...
[2022-04-06 07:02:52,397 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN
[2022-04-06 07:02:52,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 07:02:52 BasicIcfg
[2022-04-06 07:02:52,417 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-04-06 07:02:52,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-06 07:02:52,430 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-04-06 07:02:52,434 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-04-06 07:02:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 07:02:52" (1/4) ...
[2022-04-06 07:02:52,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252e73f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 07:02:52, skipping insertion in model container
[2022-04-06 07:02:52,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 07:02:52" (2/4) ...
[2022-04-06 07:02:52,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252e73f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 07:02:52, skipping insertion in model container
[2022-04-06 07:02:52,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 07:02:52" (3/4) ...
[2022-04-06 07:02:52,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252e73f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 07:02:52, skipping insertion in model container
[2022-04-06 07:02:52,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 07:02:52" (4/4) ...
[2022-04-06 07:02:52,442 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_unwindbound10.cJordan
[2022-04-06 07:02:52,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-04-06 07:02:52,446 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-04-06 07:02:52,482 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-06 07:02:52,487 INFO L340 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
[2022-04-06 07:02:52,487 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-04-06 07:02:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-04-06 07:02:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-04-06 07:02:52,503 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 07:02:52,503 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 07:02:52,504 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 07:02:52,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 07:02:52,508 INFO L85 PathProgramCache]: Analyzing trace with hash -630084848, now seen corresponding path program 1 times
[2022-04-06 07:02:52,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 07:02:52,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771683575]
[2022-04-06 07:02:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:52,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 07:02:52,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 07:02:52,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [126027118]
[2022-04-06 07:02:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:52,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:52,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:52,612 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)
[2022-04-06 07:02:52,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-04-06 07:02:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 07:02:52,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-04-06 07:02:52,683 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 07:02:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:52,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-06 07:02:52,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 07:02:52,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771683575]
[2022-04-06 07:02:52,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 07:02:52,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126027118]
[2022-04-06 07:02:52,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126027118] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 07:02:52,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 07:02:52,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-06 07:02:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835705292]
[2022-04-06 07:02:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 07:02:52,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-06 07:02:52,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 07:02:52,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-06 07:02:52,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-06 07:02:52,754 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 07:02:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 07:02:52,764 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2022-04-06 07:02:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-04-06 07:02:52,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 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 11
[2022-04-06 07:02:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 07:02:52,771 INFO L225 Difference]: With dead ends: 22
[2022-04-06 07:02:52,771 INFO L226 Difference]: Without dead ends: 17
[2022-04-06 07:02:52,772 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-06 07:02:52,774 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 07:02:52,774 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 07:02:52,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2022-04-06 07:02:52,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2022-04-06 07:02:52,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-06 07:02:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2022-04-06 07:02:52,800 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11
[2022-04-06 07:02:52,800 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 07:02:52,800 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2022-04-06 07:02:52,800 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 07:02:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2022-04-06 07:02:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-06 07:02:52,801 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 07:02:52,801 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 07:02:52,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-04-06 07:02:53,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2022-04-06 07:02:53,017 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 07:02:53,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 07:02:53,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1971636769, now seen corresponding path program 1 times
[2022-04-06 07:02:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 07:02:53,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829652222]
[2022-04-06 07:02:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 07:02:53,028 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 07:02:53,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25685838]
[2022-04-06 07:02:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:53,030 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)
[2022-04-06 07:02:53,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-04-06 07:02:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 07:02:53,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-04-06 07:02:53,129 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 07:02:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:53,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-06 07:02:53,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 07:02:53,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829652222]
[2022-04-06 07:02:53,198 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 07:02:53,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25685838]
[2022-04-06 07:02:53,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25685838] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 07:02:53,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 07:02:53,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-06 07:02:53,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916438429]
[2022-04-06 07:02:53,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 07:02:53,199 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-04-06 07:02:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 07:02:53,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-04-06 07:02:53,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 07:02:53,200 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2022-04-06 07:02:53,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 07:02:53,211 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2022-04-06 07:02:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-04-06 07:02:53,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 12
[2022-04-06 07:02:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 07:02:53,212 INFO L225 Difference]: With dead ends: 19
[2022-04-06 07:02:53,212 INFO L226 Difference]: Without dead ends: 19
[2022-04-06 07:02:53,212 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-04-06 07:02:53,213 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 07:02:53,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 07:02:53,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-04-06 07:02:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-04-06 07:02:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-04-06 07:02:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2022-04-06 07:02:53,217 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12
[2022-04-06 07:02:53,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 07:02:53,217 INFO L478 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2022-04-06 07:02:53,217 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2022-04-06 07:02:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-04-06 07:02:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-06 07:02:53,218 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 07:02:53,218 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 07:02:53,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-04-06 07:02:53,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2022-04-06 07:02:53,419 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 07:02:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 07:02:53,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1972709245, now seen corresponding path program 1 times
[2022-04-06 07:02:53,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 07:02:53,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394321363]
[2022-04-06 07:02:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 07:02:53,427 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 07:02:53,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515183023]
[2022-04-06 07:02:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:53,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:53,429 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)
[2022-04-06 07:02:53,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-04-06 07:02:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 07:02:53,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-04-06 07:02:53,472 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 07:02:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:53,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-04-06 07:02:53,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 07:02:53,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394321363]
[2022-04-06 07:02:53,585 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 07:02:53,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515183023]
[2022-04-06 07:02:53,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515183023] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-06 07:02:53,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-06 07:02:53,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-04-06 07:02:53,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755006504]
[2022-04-06 07:02:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-06 07:02:53,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-06 07:02:53,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 07:02:53,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-06 07:02:53,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-04-06 07:02:53,589 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 07:02:53,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 07:02:53,633 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions.
[2022-04-06 07:02:53,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-04-06 07:02:53,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 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 12
[2022-04-06 07:02:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 07:02:53,636 INFO L225 Difference]: With dead ends: 26
[2022-04-06 07:02:53,638 INFO L226 Difference]: Without dead ends: 25
[2022-04-06 07:02:53,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-04-06 07:02:53,641 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 07:02:53,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 07:02:53,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2022-04-06 07:02:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2022-04-06 07:02:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-04-06 07:02:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2022-04-06 07:02:53,657 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 12
[2022-04-06 07:02:53,657 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 07:02:53,657 INFO L478 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2022-04-06 07:02:53,659 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-04-06 07:02:53,659 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2022-04-06 07:02:53,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-04-06 07:02:53,659 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 07:02:53,660 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 07:02:53,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-04-06 07:02:53,879 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:53,880 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 07:02:53,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 07:02:53,880 INFO L85 PathProgramCache]: Analyzing trace with hash -832305310, now seen corresponding path program 1 times
[2022-04-06 07:02:53,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 07:02:53,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136577892]
[2022-04-06 07:02:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 07:02:53,889 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 07:02:53,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810089197]
[2022-04-06 07:02:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:53,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:53,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:53,895 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)
[2022-04-06 07:02:53,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-04-06 07:02:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 07:02:53,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-04-06 07:02:53,948 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 07:02:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:54,016 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 07:02:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:54,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 07:02:54,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136577892]
[2022-04-06 07:02:54,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 07:02:54,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810089197]
[2022-04-06 07:02:54,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810089197] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 07:02:54,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-06 07:02:54,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2022-04-06 07:02:54,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695739344]
[2022-04-06 07:02:54,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-06 07:02:54,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-04-06 07:02:54,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 07:02:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-04-06 07:02:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2022-04-06 07:02:54,130 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2022-04-06 07:02:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 07:02:54,189 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions.
[2022-04-06 07:02:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-04-06 07:02:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 20
[2022-04-06 07:02:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 07:02:54,190 INFO L225 Difference]: With dead ends: 49
[2022-04-06 07:02:54,190 INFO L226 Difference]: Without dead ends: 49
[2022-04-06 07:02:54,190 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-04-06 07:02:54,191 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-06 07:02:54,191 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 72 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-06 07:02:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2022-04-06 07:02:54,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45.
[2022-04-06 07:02:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2022-04-06 07:02:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions.
[2022-04-06 07:02:54,195 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 20
[2022-04-06 07:02:54,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 07:02:54,196 INFO L478 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions.
[2022-04-06 07:02:54,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2022-04-06 07:02:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions.
[2022-04-06 07:02:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2022-04-06 07:02:54,196 INFO L491 BasicCegarLoop]: Found error trace
[2022-04-06 07:02:54,196 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-06 07:02:54,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-04-06 07:02:54,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:54,408 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-04-06 07:02:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-04-06 07:02:54,408 INFO L85 PathProgramCache]: Analyzing trace with hash -831232834, now seen corresponding path program 1 times
[2022-04-06 07:02:54,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-04-06 07:02:54,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039785573]
[2022-04-06 07:02:54,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:54,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-06 07:02:54,420 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-04-06 07:02:54,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102246553]
[2022-04-06 07:02:54,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-06 07:02:54,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-04-06 07:02:54,429 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)
[2022-04-06 07:02:54,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-04-06 07:02:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-06 07:02:54,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-04-06 07:02:54,477 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-04-06 07:02:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:54,645 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-04-06 07:02:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-06 07:02:54,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-04-06 07:02:54,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039785573]
[2022-04-06 07:02:54,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-04-06 07:02:54,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102246553]
[2022-04-06 07:02:54,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102246553] provided 0 perfect and 2 imperfect interpolant sequences
[2022-04-06 07:02:54,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-04-06 07:02:54,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11
[2022-04-06 07:02:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082086502]
[2022-04-06 07:02:54,891 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-04-06 07:02:54,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2022-04-06 07:02:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-04-06 07:02:54,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2022-04-06 07:02:54,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2022-04-06 07:02:54,893 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 07:02:55,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-06 07:02:55,295 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions.
[2022-04-06 07:02:55,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-04-06 07:02:55,295 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20
[2022-04-06 07:02:55,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-06 07:02:55,296 INFO L225 Difference]: With dead ends: 43
[2022-04-06 07:02:55,296 INFO L226 Difference]: Without dead ends: 0
[2022-04-06 07:02:55,296 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2022-04-06 07:02:55,296 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-04-06 07:02:55,297 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 60 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-04-06 07:02:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-04-06 07:02:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-04-06 07:02:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-06 07:02:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-04-06 07:02:55,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20
[2022-04-06 07:02:55,297 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-04-06 07:02:55,297 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-04-06 07:02:55,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3)
[2022-04-06 07:02:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-04-06 07:02:55,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-04-06 07:02:55,299 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-04-06 07:02:55,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2022-04-06 07:02:55,500 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-04-06 07:02:55,502 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-04-06 07:02:55,503 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-04-06 07:02:55,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 07:02:55 BasicIcfg
[2022-04-06 07:02:55,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-06 07:02:55,505 INFO L158 Benchmark]: Toolchain (without parser) took 3486.98ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 154.2MB in the beginning and 169.1MB in the end (delta: -14.9MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,505 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 203.4MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-04-06 07:02:55,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.07ms. Allocated memory is still 203.4MB. Free memory was 154.0MB in the beginning and 179.0MB in the end (delta: -25.0MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,506 INFO L158 Benchmark]: Boogie Preprocessor took 17.00ms. Allocated memory is still 203.4MB. Free memory was 179.0MB in the beginning and 177.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,506 INFO L158 Benchmark]: RCFGBuilder took 185.99ms. Allocated memory is still 203.4MB. Free memory was 177.4MB in the beginning and 167.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,506 INFO L158 Benchmark]: IcfgTransformer took 23.86ms. Allocated memory is still 203.4MB. Free memory was 167.5MB in the beginning and 165.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,506 INFO L158 Benchmark]: TraceAbstraction took 3075.24ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 165.4MB in the beginning and 169.1MB in the end (delta: -3.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB.
[2022-04-06 07:02:55,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13ms. Allocated memory is still 203.4MB. Free memory is still 170.3MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 169.07ms. Allocated memory is still 203.4MB. Free memory was 154.0MB in the beginning and 179.0MB in the end (delta: -25.0MB). Peak memory consumption was 11.7MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 17.00ms. Allocated memory is still 203.4MB. Free memory was 179.0MB in the beginning and 177.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 185.99ms. Allocated memory is still 203.4MB. Free memory was 177.4MB in the beginning and 167.5MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* IcfgTransformer took 23.86ms. Allocated memory is still 203.4MB. Free memory was 167.5MB in the beginning and 165.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* TraceAbstraction took 3075.24ms. Allocated memory was 203.4MB in the beginning and 244.3MB in the end (delta: 40.9MB). Free memory was 165.4MB in the beginning and 169.1MB in the end (delta: -3.7MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 17]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 258 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 165 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 93 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 6 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 9/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-04-06 07:02:55,518 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 0
Received shutdown request...