/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/loop-zilu/benchmark52_polynomial.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 13:18:06,352 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 13:18:06,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 13:18:06,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 13:18:06,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 13:18:06,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 13:18:06,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 13:18:06,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 13:18:06,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 13:18:06,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 13:18:06,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 13:18:06,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 13:18:06,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 13:18:06,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 13:18:06,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 13:18:06,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 13:18:06,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 13:18:06,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 13:18:06,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 13:18:06,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 13:18:06,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 13:18:06,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 13:18:06,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 13:18:06,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 13:18:06,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-31 13:18:06,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-31 13:18:06,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-31 13:18:06,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-31 13:18:06,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-31 13:18:06,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-31 13:18:06,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-31 13:18:06,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-31 13:18:06,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-31 13:18:06,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-31 13:18:06,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-31 13:18:06,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-31 13:18:06,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-31 13:18:06,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-31 13:18:06,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-31 13:18:06,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-31 13:18:06,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 13:18:06,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-01-31 13:18:06,437 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 13:18:06,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 13:18:06,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * sizeof long=4
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 13:18:06,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * sizeof long double=12
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 13:18:06,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 13:18:06,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 13:18:06,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-01-31 13:18:06,440 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-31 13:18:06,440 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 13:18:06,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 13:18:06,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 13:18:06,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 13:18:06,660 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 13:18:06,665 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 13:18:06,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i
[2022-01-31 13:18:06,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da904aff8/23334c363d5d449d999091596984055d/FLAG4bf55dc90
[2022-01-31 13:18:07,076 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 13:18:07,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i
[2022-01-31 13:18:07,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da904aff8/23334c363d5d449d999091596984055d/FLAG4bf55dc90
[2022-01-31 13:18:07,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da904aff8/23334c363d5d449d999091596984055d
[2022-01-31 13:18:07,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 13:18:07,098 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-31 13:18:07,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 13:18:07,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 13:18:07,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 13:18:07,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b34e2f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07, skipping insertion in model container
[2022-01-31 13:18:07,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 13:18:07,118 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 13:18:07,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i[872,885]
[2022-01-31 13:18:07,297 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 13:18:07,304 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 13:18:07,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark52_polynomial.i[872,885]
[2022-01-31 13:18:07,317 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 13:18:07,326 INFO L208 MainTranslator]: Completed translation
[2022-01-31 13:18:07,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07 WrapperNode
[2022-01-31 13:18:07,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 13:18:07,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 13:18:07,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 13:18:07,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 13:18:07,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 13:18:07,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 13:18:07,353 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 13:18:07,354 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 13:18:07,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 13:18:07,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 13:18:07,381 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 13:18:07,437 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 13:18:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 13:18:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 13:18:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 13:18:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 13:18:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 13:18:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2022-01-31 13:18:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2022-01-31 13:18:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 13:18:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 13:18:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 13:18:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 13:18:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 13:18:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 13:18:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 13:18:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 13:18:07,501 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 13:18:07,502 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 13:18:07,598 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 13:18:07,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 13:18:07,602 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-31 13:18:07,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:18:07 BoogieIcfgContainer
[2022-01-31 13:18:07,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 13:18:07,603 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-31 13:18:07,603 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-01-31 13:18:07,620 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-01-31 13:18:07,622 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:18:07" (1/1) ...
[2022-01-31 13:18:07,815 INFO L89 elerationTransformer]: Jordan loop acceleration statistics: 0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult
[2022-01-31 13:18:07,816 INFO L91 elerationTransformer]: Accelerated Formula: (and (< (* v_main_~i~0_3 v_main_~i~0_3) 100) (= v_main_~i~0_2 (+ v_main_~i~0_3 1))) InVars {main_~i~0=v_main_~i~0_3} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[main_~i~0] to Formula: (let ((.cse0 (* v_main_~i~0_3 v_main_~i~0_3))) (or (and (<= 100 .cse0) (= v_main_~i~0_3 v_main_~i~0_2)) (and (forall ((v_it_1 Int)) (or (< (+ (* 2 (* v_main_~i~0_3 v_it_1)) (* v_main_~i~0_3 v_main_~i~0_3) (* v_it_1 v_it_1)) 100) (not (<= (+ v_main_~i~0_3 v_it_1 1) v_main_~i~0_2)) (not (<= 1 v_it_1)))) (< .cse0 100) (< v_main_~i~0_3 v_main_~i~0_2)))) InVars {main_~i~0=v_main_~i~0_3} OutVars{main_~i~0=v_main_~i~0_2} AuxVars[] AssignedVars[main_~i~0]
[2022-01-31 13:18:07,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 01:18:07 BasicIcfg
[2022-01-31 13:18:07,819 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-31 13:18:07,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 13:18:07,821 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 13:18:07,822 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 13:18:07,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 01:18:07" (1/4) ...
[2022-01-31 13:18:07,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cce0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:18:07, skipping insertion in model container
[2022-01-31 13:18:07,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 01:18:07" (2/4) ...
[2022-01-31 13:18:07,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cce0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 01:18:07, skipping insertion in model container
[2022-01-31 13:18:07,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 01:18:07" (3/4) ...
[2022-01-31 13:18:07,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47cce0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 01:18:07, skipping insertion in model container
[2022-01-31 13:18:07,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 01:18:07" (4/4) ...
[2022-01-31 13:18:07,824 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark52_polynomial.iJordan
[2022-01-31 13:18:07,827 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-01-31 13:18:07,828 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 13:18:07,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 13:18:07,857 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 13:18:07,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 13:18:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 13:18:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-01-31 13:18:07,869 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 13:18:07,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 13:18:07,869 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 13:18:07,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 13:18:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1809217115, now seen corresponding path program 1 times
[2022-01-31 13:18:07,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 13:18:07,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900431257]
[2022-01-31 13:18:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 13:18:07,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 13:18:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 13:18:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 13:18:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 13:18:07,991 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 13:18:07,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 13:18:07,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900431257]
[2022-01-31 13:18:07,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900431257] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 13:18:07,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 13:18:07,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 13:18:07,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460363570]
[2022-01-31 13:18:07,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 13:18:07,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 13:18:07,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 13:18:08,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 13:18:08,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 13:18:08,022 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 13:18:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 13:18:08,048 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions.
[2022-01-31 13:18:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 13:18:08,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12
[2022-01-31 13:18:08,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 13:18:08,057 INFO L225 Difference]: With dead ends: 20
[2022-01-31 13:18:08,058 INFO L226 Difference]: Without dead ends: 13
[2022-01-31 13:18:08,059 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 13:18:08,062 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-31 13:18:08,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-31 13:18:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2022-01-31 13:18:08,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2022-01-31 13:18:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 13:18:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2022-01-31 13:18:08,083 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 12
[2022-01-31 13:18:08,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 13:18:08,083 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2022-01-31 13:18:08,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 13:18:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2022-01-31 13:18:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-01-31 13:18:08,084 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 13:18:08,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 13:18:08,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 13:18:08,085 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 13:18:08,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 13:18:08,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1810140636, now seen corresponding path program 1 times
[2022-01-31 13:18:08,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 13:18:08,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605364368]
[2022-01-31 13:18:08,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 13:18:08,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 13:18:08,117 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-31 13:18:08,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193814845]
[2022-01-31 13:18:08,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 13:18:08,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 13:18:08,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 13:18:08,138 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 13:18:08,166 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 13:18:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 13:18:08,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-01-31 13:18:08,179 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 13:18:08,256 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 13:18:08,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-31 13:18:08,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 13:18:08,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605364368]
[2022-01-31 13:18:08,257 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-31 13:18:08,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193814845]
[2022-01-31 13:18:08,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193814845] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 13:18:08,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 13:18:08,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 13:18:08,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91270179]
[2022-01-31 13:18:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 13:18:08,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 13:18:08,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 13:18:08,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 13:18:08,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 13:18:08,259 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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)
[2022-01-31 13:18:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 13:18:08,267 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions.
[2022-01-31 13:18:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 13:18:08,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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
[2022-01-31 13:18:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 13:18:08,268 INFO L225 Difference]: With dead ends: 14
[2022-01-31 13:18:08,268 INFO L226 Difference]: Without dead ends: 14
[2022-01-31 13:18:08,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 13:18:08,270 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-31 13:18:08,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time]
[2022-01-31 13:18:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states.
[2022-01-31 13:18:08,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14.
[2022-01-31 13:18:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 13:18:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions.
[2022-01-31 13:18:08,272 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12
[2022-01-31 13:18:08,273 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 13:18:08,273 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions.
[2022-01-31 13:18:08,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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)
[2022-01-31 13:18:08,273 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions.
[2022-01-31 13:18:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-01-31 13:18:08,273 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 13:18:08,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 13:18:08,306 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 13:18:08,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 13:18:08,489 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 13:18:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 13:18:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 306506437, now seen corresponding path program 1 times
[2022-01-31 13:18:08,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 13:18:08,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719756283]
[2022-01-31 13:18:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 13:18:08,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 13:18:08,515 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-31 13:18:08,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448793133]
[2022-01-31 13:18:08,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 13:18:08,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 13:18:08,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 13:18:08,521 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 13:18:08,522 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 13:18:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2022-01-31 13:18:09,139 WARN L127 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility
[2022-01-31 13:18:09,139 INFO L628 BasicCegarLoop]: Counterexample might be feasible
[2022-01-31 13:18:09,143 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-01-31 13:18:09,151 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 13:18:09,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-01-31 13:18:09,347 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-01-31 13:18:09,349 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-01-31 13:18:09,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 01:18:09 BasicIcfg
[2022-01-31 13:18:09,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-01-31 13:18:09,360 INFO L158 Benchmark]: Toolchain (without parser) took 2259.41ms. Allocated memory was 190.8MB in the beginning and 289.4MB in the end (delta: 98.6MB). Free memory was 136.6MB in the beginning and 205.1MB in the end (delta: -68.5MB). Peak memory consumption was 29.9MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,363 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 13:18:09,364 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.67ms. Allocated memory was 190.8MB in the beginning and 289.4MB in the end (delta: 98.6MB). Free memory was 136.4MB in the beginning and 261.7MB in the end (delta: -125.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,364 INFO L158 Benchmark]: Boogie Preprocessor took 23.79ms. Allocated memory is still 289.4MB. Free memory was 261.7MB in the beginning and 260.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,364 INFO L158 Benchmark]: RCFGBuilder took 249.68ms. Allocated memory is still 289.4MB. Free memory was 260.1MB in the beginning and 249.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,364 INFO L158 Benchmark]: IcfgTransformer took 216.18ms. Allocated memory is still 289.4MB. Free memory was 249.6MB in the beginning and 241.8MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,364 INFO L158 Benchmark]: TraceAbstraction took 1537.00ms. Allocated memory is still 289.4MB. Free memory was 241.2MB in the beginning and 205.1MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB.
[2022-01-31 13:18:09,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from IcfgTransformer:
- StatisticsResult: Jordan loop acceleration statistics
0 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 226.67ms. Allocated memory was 190.8MB in the beginning and 289.4MB in the end (delta: 98.6MB). Free memory was 136.4MB in the beginning and 261.7MB in the end (delta: -125.2MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 23.79ms. Allocated memory is still 289.4MB. Free memory was 261.7MB in the beginning and 260.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 249.68ms. Allocated memory is still 289.4MB. Free memory was 260.1MB in the beginning and 249.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* IcfgTransformer took 216.18ms. Allocated memory is still 289.4MB. Free memory was 249.6MB in the beginning and 241.8MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB.
* TraceAbstraction took 1537.00ms. Allocated memory is still 289.4MB. Free memory was 241.2MB in the beginning and 205.1MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. 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
- UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L20] int i = __VERIFIER_nondet_int();
[L21] COND FALSE !(!(i < 10 && i > -10))
[L22] COND TRUE i * i < 100
[L23] i = i + 1
[L22] COND FALSE !(i * i < 100)
[L25] CALL __VERIFIER_assert(i == 10)
[L15] COND TRUE !cond
[L16] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 32 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 1 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2022-01-31 13:18:09,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...