java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/nla-digbench/egcd.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.24-f4eb214f-m
[2019-10-14 00:39:35,815 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-14 00:39:35,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 00:39:35,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 00:39:35,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 00:39:35,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 00:39:35,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 00:39:35,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 00:39:35,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 00:39:35,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 00:39:35,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 00:39:35,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 00:39:35,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 00:39:35,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 00:39:35,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 00:39:35,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 00:39:35,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 00:39:35,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 00:39:35,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 00:39:35,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 00:39:35,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 00:39:35,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 00:39:35,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 00:39:35,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 00:39:35,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-14 00:39:35,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-14 00:39:35,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-14 00:39:35,882 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-14 00:39:35,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-14 00:39:35,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-14 00:39:35,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-14 00:39:35,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-14 00:39:35,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-14 00:39:35,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-14 00:39:35,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-14 00:39:35,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-14 00:39:35,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-14 00:39:35,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-14 00:39:35,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-14 00:39:35,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-14 00:39:35,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 00:39:35,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-14 00:39:35,915 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-14 00:39:35,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 00:39:35,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 00:39:35,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-14 00:39:35,917 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-14 00:39:35,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 00:39:35,918 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-14 00:39:35,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-14 00:39:35,918 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-14 00:39:35,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-14 00:39:35,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 00:39:35,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 00:39:35,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 00:39:35,919 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-14 00:39:35,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-14 00:39:35,920 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-14 00:39:35,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-14 00:39:35,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 00:39:35,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-14 00:39:35,920 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-14 00:39:35,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-14 00:39:35,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 00:39:35,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 00:39:35,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 00:39:35,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 00:39:35,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-14 00:39:35,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 00:39:35,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 00:39:35,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain
[2019-10-14 00:39:36,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 00:39:36,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 00:39:36,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 00:39:36,241 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-14 00:39:36,242 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-14 00:39:36,243 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/egcd.c
[2019-10-14 00:39:36,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528e11662/71c20647bfa7415bb118c11f7aaed8c4/FLAG3d1f6a73c
[2019-10-14 00:39:36,764 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-14 00:39:36,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/egcd.c
[2019-10-14 00:39:36,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528e11662/71c20647bfa7415bb118c11f7aaed8c4/FLAG3d1f6a73c
[2019-10-14 00:39:37,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/528e11662/71c20647bfa7415bb118c11f7aaed8c4
[2019-10-14 00:39:37,150 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 00:39:37,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 00:39:37,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:37,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 00:39:37,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 00:39:37,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37, skipping insertion in model container
[2019-10-14 00:39:37,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,169 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-14 00:39:37,187 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-14 00:39:37,369 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:37,374 INFO L188 MainTranslator]: Completed pre-run
[2019-10-14 00:39:37,397 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:37,411 INFO L192 MainTranslator]: Completed translation
[2019-10-14 00:39:37,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37 WrapperNode
[2019-10-14 00:39:37,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:37,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 00:39:37,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 00:39:37,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 00:39:37,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 00:39:37,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 00:39:37,548 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 00:39:37,548 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-14 00:39:37,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:37" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 00:39:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 00:39:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 00:39:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-14 00:39:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-14 00:39:37,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 00:39:37,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 00:39:37,794 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 00:39:37,794 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 00:39:37,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:37 BoogieIcfgContainer
[2019-10-14 00:39:37,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 00:39:37,796 INFO L113 PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2019-10-14 00:39:37,796 INFO L271 PluginConnector]: Initializing Abstract Interpretation...
[2019-10-14 00:39:37,797 INFO L275 PluginConnector]: Abstract Interpretation initialized
[2019-10-14 00:39:37,797 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:37" (1/1) ...
[2019-10-14 00:39:37,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-14 00:39:38,073 INFO L263 AbstractInterpreter]: Some error location(s) were reachable
[2019-10-14 00:39:38,093 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 39 root evaluator evaluations with a maximum evaluation depth of 8. Performed 39 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Never found a fixpoint. Largest state had 11 variables.
[2019-10-14 00:39:38,093 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2019-10-14 00:39:38,096 INFO L168 Benchmark]: Toolchain (without parser) took 943.53 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.3 MB in the beginning and 159.4 MB in the end (delta: -56.1 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,097 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.83 ms. Allocated memory is still 145.8 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,099 INFO L168 Benchmark]: Boogie Preprocessor took 133.59 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,100 INFO L168 Benchmark]: RCFGBuilder took 247.59 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,101 INFO L168 Benchmark]: Abstract Interpretation took 297.39 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 159.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:38,105 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 258.83 ms. Allocated memory is still 145.8 MB. Free memory was 103.1 MB in the beginning and 93.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 133.59 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 247.59 ms. Allocated memory is still 203.4 MB. Free memory was 181.8 MB in the beginning and 169.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB.
* Abstract Interpretation took 297.39 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 159.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2:
- UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: abstract domain could reach this error location.
Possible FailurePath:
[L14] int a, b, p, q, r, s;
[L15] int x, y;
[L16] x = __VERIFIER_nondet_int()
[L17] y = __VERIFIER_nondet_int()
[L21] a = x
[L22] b = y
[L23] p = 1
[L24] q = 0
[L25] r = 0
[L26] s = 1
[L28] COND TRUE 1
[L29] CALL __VERIFIER_assert(1 == p * s - r * q)
[L6] COND TRUE !(cond)
[L8] __VERIFIER_error()
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...