/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/freire2_unwindbound100.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-dev-d966a43
[2022-01-31 14:44:03,928 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-01-31 14:44:03,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-01-31 14:44:03,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-01-31 14:44:03,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-01-31 14:44:03,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-01-31 14:44:03,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-01-31 14:44:03,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-01-31 14:44:03,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-01-31 14:44:03,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-01-31 14:44:03,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-01-31 14:44:03,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-01-31 14:44:03,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-01-31 14:44:03,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-01-31 14:44:03,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-01-31 14:44:03,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-01-31 14:44:04,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-01-31 14:44:04,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-01-31 14:44:04,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-01-31 14:44:04,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-01-31 14:44:04,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-01-31 14:44:04,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-01-31 14:44:04,006 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-01-31 14:44:04,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-01-31 14:44:04,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-01-31 14:44:04,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-01-31 14:44:04,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-01-31 14:44:04,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-01-31 14:44:04,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-01-31 14:44:04,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-01-31 14:44:04,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-01-31 14:44:04,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-01-31 14:44:04,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-01-31 14:44:04,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-01-31 14:44:04,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-01-31 14:44:04,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-01-31 14:44:04,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-01-31 14:44:04,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-01-31 14:44:04,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-01-31 14:44:04,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-01-31 14:44:04,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-01-31 14:44:04,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf
[2022-01-31 14:44:04,031 INFO L113 SettingsManager]: Loading preferences was successful
[2022-01-31 14:44:04,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-01-31 14:44:04,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-01-31 14:44:04,032 INFO L138 SettingsManager]: * sizeof long=4
[2022-01-31 14:44:04,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-01-31 14:44:04,033 INFO L138 SettingsManager]: * sizeof long double=12
[2022-01-31 14:44:04,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-01-31 14:44:04,034 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-01-31 14:44:04,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-01-31 14:44:04,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-01-31 14:44:04,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-01-31 14:44:04,034 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-01-31 14:44:04,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-01-31 14:44:04,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 14:44:04,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-01-31 14:44:04,041 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-01-31 14:44:04,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-01-31 14:44:04,041 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN;
[2022-01-31 14:44:04,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-01-31 14:44:04,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-01-31 14:44:04,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-01-31 14:44:04,244 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-01-31 14:44:04,244 INFO L275 PluginConnector]: CDTParser initialized
[2022-01-31 14:44:04,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound100.c
[2022-01-31 14:44:04,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5babb7679/2a455fcd52f34ddab8f29c7c78aabe2c/FLAG12009a149
[2022-01-31 14:44:04,597 INFO L306 CDTParser]: Found 1 translation units.
[2022-01-31 14:44:04,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire2_unwindbound100.c
[2022-01-31 14:44:04,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5babb7679/2a455fcd52f34ddab8f29c7c78aabe2c/FLAG12009a149
[2022-01-31 14:44:05,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5babb7679/2a455fcd52f34ddab8f29c7c78aabe2c
[2022-01-31 14:44:05,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-01-31 14:44:05,025 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2022-01-31 14:44:05,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-01-31 14:44:05,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-01-31 14:44:05,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-01-31 14:44:05,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62245414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05, skipping insertion in model container
[2022-01-31 14:44:05,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-01-31 14:44:05,051 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-01-31 14:44:05,160 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/freire2_unwindbound100.c[709,722]
[2022-01-31 14:44:05,193 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 14:44:05,221 INFO L203 MainTranslator]: Completed pre-run
[2022-01-31 14:44:05,232 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/freire2_unwindbound100.c[709,722]
[2022-01-31 14:44:05,239 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-01-31 14:44:05,249 INFO L208 MainTranslator]: Completed translation
[2022-01-31 14:44:05,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05 WrapperNode
[2022-01-31 14:44:05,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-01-31 14:44:05,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-01-31 14:44:05,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-01-31 14:44:05,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-01-31 14:44:05,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-01-31 14:44:05,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-01-31 14:44:05,277 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-01-31 14:44:05,277 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-01-31 14:44:05,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-01-31 14:44:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 14:44:05,306 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 14:44:05,308 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 14:44:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2022-01-31 14:44:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-01-31 14:44:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2022-01-31 14:44:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2022-01-31 14:44:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-01-31 14:44:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2022-01-31 14:44:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2022-01-31 14:44:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2022-01-31 14:44:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2022-01-31 14:44:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2022-01-31 14:44:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-01-31 14:44:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-01-31 14:44:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-01-31 14:44:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-01-31 14:44:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-01-31 14:44:05,393 INFO L234 CfgBuilder]: Building ICFG
[2022-01-31 14:44:05,394 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-01-31 14:44:05,490 INFO L275 CfgBuilder]: Performing block encoding
[2022-01-31 14:44:05,495 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-01-31 14:44:05,495 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-01-31 14:44:05,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:44:05 BoogieIcfgContainer
[2022-01-31 14:44:05,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-01-31 14:44:05,497 INFO L113 PluginConnector]: ------------------------IcfgTransformer----------------------------
[2022-01-31 14:44:05,497 INFO L271 PluginConnector]: Initializing IcfgTransformer...
[2022-01-31 14:44:05,498 INFO L275 PluginConnector]: IcfgTransformer initialized
[2022-01-31 14:44:05,500 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:44:05" (1/1) ...
[2022-01-31 14:44:05,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 02:44:05 BasicIcfg
[2022-01-31 14:44:05,518 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer----------------------------
[2022-01-31 14:44:05,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-01-31 14:44:05,520 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-01-31 14:44:05,522 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-01-31 14:44:05,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 02:44:05" (1/4) ...
[2022-01-31 14:44:05,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9536f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 02:44:05, skipping insertion in model container
[2022-01-31 14:44:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 02:44:05" (2/4) ...
[2022-01-31 14:44:05,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9536f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 02:44:05, skipping insertion in model container
[2022-01-31 14:44:05,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:44:05" (3/4) ...
[2022-01-31 14:44:05,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9536f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 02:44:05, skipping insertion in model container
[2022-01-31 14:44:05,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 02:44:05" (4/4) ...
[2022-01-31 14:44:05,524 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound100.cJordan
[2022-01-31 14:44:05,528 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION
[2022-01-31 14:44:05,528 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-01-31 14:44:05,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-01-31 14:44:05,567 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 14:44:05,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-01-31 14:44:05,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-01-31 14:44:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-01-31 14:44:05,599 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 14:44:05,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 14:44:05,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 14:44:05,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 14:44:05,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1238828824, now seen corresponding path program 1 times
[2022-01-31 14:44:05,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 14:44:05,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775466524]
[2022-01-31 14:44:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 14:44:05,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 14:44:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 14:44:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2022-01-31 14:44:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 14:44:05,754 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 14:44:05,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 14:44:05,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775466524]
[2022-01-31 14:44:05,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775466524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 14:44:05,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 14:44:05,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-01-31 14:44:05,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649707490]
[2022-01-31 14:44:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 14:44:05,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-01-31 14:44:05,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 14:44:05,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-01-31 14:44:05,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-01-31 14:44:05,785 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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)
[2022-01-31 14:44:05,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 14:44:05,880 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions.
[2022-01-31 14:44:05,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-01-31 14:44:05,883 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
[2022-01-31 14:44:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 14:44:05,889 INFO L225 Difference]: With dead ends: 27
[2022-01-31 14:44:05,889 INFO L226 Difference]: Without dead ends: 22
[2022-01-31 14:44:05,891 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 14:44:05,894 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-01-31 14:44:05,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-01-31 14:44:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2022-01-31 14:44:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2022-01-31 14:44:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-31 14:44:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions.
[2022-01-31 14:44:05,942 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 11
[2022-01-31 14:44:05,942 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 14:44:05,942 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions.
[2022-01-31 14:44:05,943 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)
[2022-01-31 14:44:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions.
[2022-01-31 14:44:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-01-31 14:44:05,955 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 14:44:05,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 14:44:05,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-01-31 14:44:05,955 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 14:44:05,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 14:44:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash -221581531, now seen corresponding path program 1 times
[2022-01-31 14:44:05,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 14:44:05,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315530286]
[2022-01-31 14:44:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 14:44:05,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 14:44:05,980 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-31 14:44:05,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400087260]
[2022-01-31 14:44:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 14:44:05,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 14:44:05,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 14:44:05,995 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 14:44:06,040 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 14:44:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-01-31 14:44:06,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-01-31 14:44:06,075 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-01-31 14:44:06,153 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 14:44:06,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-01-31 14:44:06,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-01-31 14:44:06,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315530286]
[2022-01-31 14:44:06,155 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-01-31 14:44:06,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400087260]
[2022-01-31 14:44:06,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400087260] provided 1 perfect and 0 imperfect interpolant sequences
[2022-01-31 14:44:06,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-01-31 14:44:06,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-01-31 14:44:06,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325209930]
[2022-01-31 14:44:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-01-31 14:44:06,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-01-31 14:44:06,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-01-31 14:44:06,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-01-31 14:44:06,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-31 14:44:06,165 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 14:44:06,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-01-31 14:44:06,185 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions.
[2022-01-31 14:44:06,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-01-31 14:44:06,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-01-31 14:44:06,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-01-31 14:44:06,190 INFO L225 Difference]: With dead ends: 23
[2022-01-31 14:44:06,190 INFO L226 Difference]: Without dead ends: 23
[2022-01-31 14:44:06,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-01-31 14:44:06,192 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-01-31 14:44:06,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-01-31 14:44:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2022-01-31 14:44:06,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2022-01-31 14:44:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2022-01-31 14:44:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions.
[2022-01-31 14:44:06,200 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12
[2022-01-31 14:44:06,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-01-31 14:44:06,200 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions.
[2022-01-31 14:44:06,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-01-31 14:44:06,200 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions.
[2022-01-31 14:44:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-01-31 14:44:06,201 INFO L506 BasicCegarLoop]: Found error trace
[2022-01-31 14:44:06,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-01-31 14:44:06,225 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 14:44:06,401 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 14:44:06,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-01-31 14:44:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-01-31 14:44:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash -220509055, now seen corresponding path program 1 times
[2022-01-31 14:44:06,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-01-31 14:44:06,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265431720]
[2022-01-31 14:44:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 14:44:06,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-01-31 14:44:06,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-01-31 14:44:06,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397973680]
[2022-01-31 14:44:06,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-01-31 14:44:06,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-01-31 14:44:06,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-01-31 14:44:06,426 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 14:44:06,436 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 14:44:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-01-31 14:44:06,472 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-01-31 14:44:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-01-31 14:44:06,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-01-31 14:44:06,492 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2022-01-31 14:44:06,493 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-01-31 14:44:06,519 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 14:44:06,717 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 14:44:06,720 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2022-01-31 14:44:06,722 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-01-31 14:44:06,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 02:44:06 BasicIcfg
[2022-01-31 14:44:06,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-01-31 14:44:06,737 INFO L158 Benchmark]: Toolchain (without parser) took 1712.21ms. Allocated memory was 184.5MB in the beginning and 234.9MB in the end (delta: 50.3MB). Free memory was 129.8MB in the beginning and 151.0MB in the end (delta: -21.2MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,737 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 184.5MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-01-31 14:44:06,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.56ms. Allocated memory was 184.5MB in the beginning and 234.9MB in the end (delta: 50.3MB). Free memory was 129.6MB in the beginning and 207.6MB in the end (delta: -78.1MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,738 INFO L158 Benchmark]: Boogie Preprocessor took 25.62ms. Allocated memory is still 234.9MB. Free memory was 207.1MB in the beginning and 206.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,738 INFO L158 Benchmark]: RCFGBuilder took 219.33ms. Allocated memory is still 234.9MB. Free memory was 205.5MB in the beginning and 194.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,739 INFO L158 Benchmark]: IcfgTransformer took 21.16ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 192.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,739 INFO L158 Benchmark]: TraceAbstraction took 1216.98ms. Allocated memory is still 234.9MB. Free memory was 191.9MB in the beginning and 151.0MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB.
[2022-01-31 14:44:06,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.64ms. Allocated memory is still 184.5MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 224.56ms. Allocated memory was 184.5MB in the beginning and 234.9MB in the end (delta: 50.3MB). Free memory was 129.6MB in the beginning and 207.6MB in the end (delta: -78.1MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 25.62ms. Allocated memory is still 234.9MB. Free memory was 207.1MB in the beginning and 206.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 219.33ms. Allocated memory is still 234.9MB. Free memory was 205.5MB in the beginning and 194.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* IcfgTransformer took 21.16ms. Allocated memory is still 234.9MB. Free memory was 194.0MB in the beginning and 192.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* TraceAbstraction took 1216.98ms. Allocated memory is still 234.9MB. Free memory was 191.9MB in the beginning and 151.0MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. 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 34.
Possible FailurePath:
[L24] int counter = 0;
VAL [\old(counter)=6, counter=0]
[L26] int r;
[L27] double a, x, s;
[L28] a = __VERIFIER_nondet_double()
[L29] x = a
[L30] s = 3.25
[L31] r = 1
VAL [\old(counter)=0, a=2, counter=0, r=1, s=13/4, x=2]
[L33] EXPR counter++
VAL [\old(counter)=0, a=2, counter=1, counter++=0, r=1, s=13/4, x=2]
[L33] COND TRUE counter++<100
[L34] CALL __VERIFIER_assert((int)(4*s) - 12*r*r == 1)
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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, 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, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 56 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 5 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 14:44:06,767 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...