/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/freire1_unwindbound20.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-05ce600
[2022-02-23 18:19:15,150 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-23 18:19:15,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-23 18:19:15,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-23 18:19:15,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-23 18:19:15,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-23 18:19:15,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-23 18:19:15,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-23 18:19:15,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-23 18:19:15,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-23 18:19:15,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-23 18:19:15,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-23 18:19:15,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-23 18:19:15,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-23 18:19:15,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-23 18:19:15,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-23 18:19:15,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-23 18:19:15,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-23 18:19:15,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-23 18:19:15,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-23 18:19:15,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-23 18:19:15,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-23 18:19:15,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-23 18:19:15,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-23 18:19:15,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-23 18:19:15,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-23 18:19:15,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-23 18:19:15,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-23 18:19:15,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-23 18:19:15,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-23 18:19:15,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-23 18:19:15,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-23 18:19:15,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-23 18:19:15,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-23 18:19:15,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-23 18:19:15,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-23 18:19:15,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-23 18:19:15,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-23 18:19:15,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-23 18:19:15,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-23 18:19:15,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-23 18:19:15,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-02-23 18:19:15,268 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-23 18:19:15,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-23 18:19:15,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-23 18:19:15,270 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-23 18:19:15,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-23 18:19:15,270 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-23 18:19:15,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-23 18:19:15,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-23 18:19:15,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-23 18:19:15,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-23 18:19:15,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-23 18:19:15,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-23 18:19:15,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-23 18:19:15,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-23 18:19:15,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-23 18:19:15,279 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-02-23 18:19:15,279 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-02-23 18:19:15,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-23 18:19:15,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-23 18:19:15,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-23 18:19:15,537 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-23 18:19:15,537 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-23 18:19:15,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound20.c
[2022-02-23 18:19:15,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1b5b8b9/cf130787925b406f8c5185ad8fb54929/FLAG742d66cb3
[2022-02-23 18:19:15,958 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-23 18:19:15,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound20.c
[2022-02-23 18:19:15,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1b5b8b9/cf130787925b406f8c5185ad8fb54929/FLAG742d66cb3
[2022-02-23 18:19:16,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1b5b8b9/cf130787925b406f8c5185ad8fb54929
[2022-02-23 18:19:16,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-23 18:19:16,375 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-02-23 18:19:16,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-23 18:19:16,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-23 18:19:16,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-23 18:19:16,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcf5bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16, skipping insertion in model container
[2022-02-23 18:19:16,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-23 18:19:16,399 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-23 18:19:16,538 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/freire1_unwindbound20.c[712,725]
[2022-02-23 18:19:16,590 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-23 18:19:16,599 INFO L203 MainTranslator]: Completed pre-run
[2022-02-23 18:19:16,610 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/freire1_unwindbound20.c[712,725]
[2022-02-23 18:19:16,619 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-23 18:19:16,628 INFO L208 MainTranslator]: Completed translation
[2022-02-23 18:19:16,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16 WrapperNode
[2022-02-23 18:19:16,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-23 18:19:16,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-23 18:19:16,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-23 18:19:16,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-23 18:19:16,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-23 18:19:16,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-23 18:19:16,656 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-23 18:19:16,656 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-23 18:19:16,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-23 18:19:16,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-23 18:19:16,689 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)
[2022-02-23 18:19:16,692 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
[2022-02-23 18:19:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-02-23 18:19:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-23 18:19:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-02-23 18:19:16,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-02-23 18:19:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-02-23 18:19:16,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-02-23 18:19:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-02-23 18:19:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-02-23 18:19:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-02-23 18:19:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-02-23 18:19:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2022-02-23 18:19:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-02-23 18:19:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-02-23 18:19:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-02-23 18:19:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-02-23 18:19:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-02-23 18:19:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-23 18:19:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-02-23 18:19:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-02-23 18:19:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-02-23 18:19:16,780 INFO L234 CfgBuilder]: Building ICFG
[2022-02-23 18:19:16,781 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-23 18:19:16,905 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-23 18:19:16,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-23 18:19:16,910 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-23 18:19:16,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:19:16 BoogieIcfgContainer
[2022-02-23 18:19:16,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-23 18:19:16,913 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-02-23 18:19:16,913 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-02-23 18:19:16,920 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-02-23 18:19:16,923 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:19:16" (1/1) ...
[2022-02-23 18:19:16,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 06:19:16 BasicIcfg
[2022-02-23 18:19:16,944 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-02-23 18:19:16,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-23 18:19:16,949 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-23 18:19:16,953 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-23 18:19:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:19:16" (1/4) ...
[2022-02-23 18:19:16,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cef9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:19:16, skipping insertion in model container
[2022-02-23 18:19:16,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:19:16" (2/4) ...
[2022-02-23 18:19:16,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cef9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:19:16, skipping insertion in model container
[2022-02-23 18:19:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:19:16" (3/4) ...
[2022-02-23 18:19:16,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cef9063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:19:16, skipping insertion in model container
[2022-02-23 18:19:16,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 06:19:16" (4/4) ...
[2022-02-23 18:19:16,956 INFO L111 eAbstractionObserver]: Analyzing ICFG freire1_unwindbound20.cJordan
[2022-02-23 18:19:16,961 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-02-23 18:19:16,961 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-23 18:19:16,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-23 18:19:17,006 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
[2022-02-23 18:19:17,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-02-23 18:19:17,021 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)
[2022-02-23 18:19:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-02-23 18:19:17,030 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-23 18:19:17,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 18:19:17,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 18:19:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 18:19:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -630084848, now seen corresponding path program 1 times
[2022-02-23 18:19:17,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 18:19:17,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035233646]
[2022-02-23 18:19:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 18:19:17,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 18:19:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 18:19:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-23 18:19:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 18:19:17,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-23 18:19:17,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-23 18:19:17,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035233646]
[2022-02-23 18:19:17,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035233646] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-23 18:19:17,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-23 18:19:17,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-23 18:19:17,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833179746]
[2022-02-23 18:19:17,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-23 18:19:17,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-23 18:19:17,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-23 18:19:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-23 18:19:17,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-23 18:19:17,241 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2022-02-23 18:19:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-23 18:19:17,296 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions.
[2022-02-23 18:19:17,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-23 18:19:17,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 11
[2022-02-23 18:19:17,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-23 18:19:17,308 INFO L225 Difference]: With dead ends: 23
[2022-02-23 18:19:17,308 INFO L226 Difference]: Without dead ends: 18
[2022-02-23 18:19:17,310 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
[2022-02-23 18:19:17,313 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-23 18:19:17,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-23 18:19:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2022-02-23 18:19:17,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17.
[2022-02-23 18:19:17,344 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)
[2022-02-23 18:19:17,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2022-02-23 18:19:17,346 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11
[2022-02-23 18:19:17,346 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-23 18:19:17,347 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2022-02-23 18:19:17,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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)
[2022-02-23 18:19:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2022-02-23 18:19:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-02-23 18:19:17,349 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-23 18:19:17,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 18:19:17,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-23 18:19:17,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 18:19:17,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 18:19:17,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1971636769, now seen corresponding path program 1 times
[2022-02-23 18:19:17,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 18:19:17,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720895774]
[2022-02-23 18:19:17,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 18:19:17,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 18:19:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 18:19:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-02-23 18:19:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-23 18:19:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-23 18:19:17,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-23 18:19:17,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720895774]
[2022-02-23 18:19:17,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720895774] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-23 18:19:17,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-23 18:19:17,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-02-23 18:19:17,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315564871]
[2022-02-23 18:19:17,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-23 18:19:17,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-02-23 18:19:17,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-23 18:19:17,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-02-23 18:19:17,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-02-23 18:19:17,480 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 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)
[2022-02-23 18:19:17,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-02-23 18:19:17,546 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2022-02-23 18:19:17,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-02-23 18:19:17,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 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
[2022-02-23 18:19:17,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-02-23 18:19:17,548 INFO L225 Difference]: With dead ends: 19
[2022-02-23 18:19:17,548 INFO L226 Difference]: Without dead ends: 19
[2022-02-23 18:19:17,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-02-23 18:19:17,553 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-02-23 18:19:17,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 33 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-02-23 18:19:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-02-23 18:19:17,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-02-23 18:19:17,560 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)
[2022-02-23 18:19:17,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2022-02-23 18:19:17,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12
[2022-02-23 18:19:17,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-02-23 18:19:17,562 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2022-02-23 18:19:17,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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)
[2022-02-23 18:19:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2022-02-23 18:19:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-02-23 18:19:17,567 INFO L506 BasicCegarLoop]: Found error trace
[2022-02-23 18:19:17,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-02-23 18:19:17,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-02-23 18:19:17,573 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-02-23 18:19:17,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-23 18:19:17,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1972709245, now seen corresponding path program 1 times
[2022-02-23 18:19:17,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-23 18:19:17,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532055172]
[2022-02-23 18:19:17,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-23 18:19:17,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-23 18:19:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-23 18:19:17,591 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-23 18:19:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-23 18:19:17,641 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-23 18:19:17,641 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-02-23 18:19:17,642 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-02-23 18:19:17,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-02-23 18:19:17,647 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-02-23 18:19:17,650 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-23 18:19:17,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:19:17 BasicIcfg
[2022-02-23 18:19:17,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-23 18:19:17,671 INFO L158 Benchmark]: Toolchain (without parser) took 1296.40ms. Allocated memory was 189.8MB in the beginning and 260.0MB in the end (delta: 70.3MB). Free memory was 133.3MB in the beginning and 184.2MB in the end (delta: -51.0MB). Peak memory consumption was 19.5MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,672 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-23 18:19:17,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.01ms. Allocated memory was 189.8MB in the beginning and 260.0MB in the end (delta: 70.3MB). Free memory was 133.0MB in the beginning and 231.4MB in the end (delta: -98.4MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,672 INFO L158 Benchmark]: Boogie Preprocessor took 25.29ms. Allocated memory is still 260.0MB. Free memory was 231.4MB in the beginning and 229.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,673 INFO L158 Benchmark]: RCFGBuilder took 256.11ms. Allocated memory is still 260.0MB. Free memory was 229.9MB in the beginning and 219.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,673 INFO L158 Benchmark]: IcfgTransformer took 31.31ms. Allocated memory is still 260.0MB. Free memory was 219.4MB in the beginning and 218.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,673 INFO L158 Benchmark]: TraceAbstraction took 722.23ms. Allocated memory is still 260.0MB. Free memory was 217.8MB in the beginning and 184.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB.
[2022-02-23 18:19:17,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.12ms. Allocated memory is still 189.8MB. Free memory is still 149.3MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 253.01ms. Allocated memory was 189.8MB in the beginning and 260.0MB in the end (delta: 70.3MB). Free memory was 133.0MB in the beginning and 231.4MB in the end (delta: -98.4MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 25.29ms. Allocated memory is still 260.0MB. Free memory was 231.4MB in the beginning and 229.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 256.11ms. Allocated memory is still 260.0MB. Free memory was 229.9MB in the beginning and 219.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB.
* IcfgTransformer took 31.31ms. Allocated memory is still 260.0MB. Free memory was 219.4MB in the beginning and 218.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 722.23ms. Allocated memory is still 260.0MB. Free memory was 217.8MB in the beginning and 184.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. 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: 19]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of to_int at line 33, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29.
Possible FailurePath:
[L24] int counter = 0;
VAL [\old(counter)=53, counter=0]
[L26] int r;
[L27] double a, x;
[L28] a = __VERIFIER_nondet_double()
[L29] x = a / 2.0
[L30] r = 0
VAL [\old(counter)=0, a=50, counter=0, r=0]
[L32] EXPR counter++
VAL [\old(counter)=0, a=50, counter=1, counter++=0, r=0]
[L32] COND TRUE counter++<20
[L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0)
VAL [\old(cond)=0, \old(counter)=0, counter=1]
[L17] COND TRUE !(cond)
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1]
[L19] reach_error()
VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 40 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 51 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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
[2022-02-23 18:19:17,715 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...