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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:27:08,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:27:08,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:27:08,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 21:27:08,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 21:27:08,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 21:27:08,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 21:27:08,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 21:27:08,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 21:27:08,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 21:27:08,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 21:27:08,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 21:27:08,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:27:08,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:27:08,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:27:08,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:27:08,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:27:08,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:27:08,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:27:08,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:27:08,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:27:08,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:27:08,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:27:08,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:27:08,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-03 21:27:08,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-03 21:27:08,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-03 21:27:08,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-03 21:27:08,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-03 21:27:08,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-03 21:27:08,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:27:08,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:27:08,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:27:08,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:27:08,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:27:08,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:27:08,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:27:08,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:27:08,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:27:08,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:27:08,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:27:08,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-03 21:27:08,723 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:27:08,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:27:08,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:27:08,724 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:27:08,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:27:08,725 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:27:08,725 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:27:08,726 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:27:08,726 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:27:08,726 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:27:08,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:27:08,728 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:27:08,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:27:08,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:27:08,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:27:08,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:27:08,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:27:08,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:27:08,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:27:08,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:27:08,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:27:08,732 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:27:08,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:27:08,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:27:08,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:27:08,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:27:08,734 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:27:08,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:27:08,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:27:08,735 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:27:08,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:27:08,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:27:08,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:27:08,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:27:08,796 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:27:08,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2019-09-03 21:27:08,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8774c1b1/1745b1d9fe434b488f573312f24a3a08/FLAG69540a988 [2019-09-03 21:27:09,311 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:27:09,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+sep-reducer.c [2019-09-03 21:27:09,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8774c1b1/1745b1d9fe434b488f573312f24a3a08/FLAG69540a988 [2019-09-03 21:27:09,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8774c1b1/1745b1d9fe434b488f573312f24a3a08 [2019-09-03 21:27:09,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:27:09,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:27:09,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:09,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:27:09,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:27:09,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:09" (1/1) ... [2019-09-03 21:27:09,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200cb388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:09, skipping insertion in model container [2019-09-03 21:27:09,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:27:09" (1/1) ... [2019-09-03 21:27:09,717 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:27:09,737 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:27:09,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:09,901 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:27:09,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:27:10,025 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:27:10,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10 WrapperNode [2019-09-03 21:27:10,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:27:10,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:27:10,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:27:10,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:27:10,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:27:10,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:27:10,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:27:10,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:27:10,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:27:10" (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 [2019-09-03 21:27:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:27:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:27:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:27:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:27:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 21:27:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:27:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:27:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:27:10,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:27:10,377 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:27:10,377 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-03 21:27:10,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:10 BoogieIcfgContainer [2019-09-03 21:27:10,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:27:10,380 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-03 21:27:10,380 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-03 21:27:10,380 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-03 21:27:10,381 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:27:10" (1/1) ... [2019-09-03 21:27:10,454 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 21:27:10,581 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-03 21:27:11,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 21:27:12,007 INFO L272 AbstractInterpreter]: Visited 37 different actions 298 times. Merged at 29 different actions 187 times. Widened at 5 different actions 7 times. Performed 1352 root evaluator evaluations with a maximum evaluation depth of 13. Performed 1352 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 75 fixpoints after 16 different actions. Largest state had 29 variables. [2019-09-03 21:27:12,008 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-09-03 21:27:12,011 INFO L168 Benchmark]: Toolchain (without parser) took 2307.62 ms. Allocated memory was 132.6 MB in the beginning and 263.7 MB in the end (delta: 131.1 MB). Free memory was 87.1 MB in the beginning and 168.0 MB in the end (delta: -80.9 MB). Peak memory consumption was 50.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,013 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.82 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 86.9 MB in the beginning and 176.7 MB in the end (delta: -89.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,015 INFO L168 Benchmark]: Boogie Preprocessor took 47.58 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 174.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,017 INFO L168 Benchmark]: RCFGBuilder took 303.92 ms. Allocated memory is still 199.2 MB. Free memory was 174.5 MB in the beginning and 158.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,018 INFO L168 Benchmark]: Abstract Interpretation took 1628.33 ms. Allocated memory was 199.2 MB in the beginning and 263.7 MB in the end (delta: 64.5 MB). Free memory was 158.4 MB in the beginning and 168.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-09-03 21:27:12,030 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 323.82 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 86.9 MB in the beginning and 176.7 MB in the end (delta: -89.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.58 ms. Allocated memory is still 199.2 MB. Free memory was 176.7 MB in the beginning and 174.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 303.92 ms. Allocated memory is still 199.2 MB. Free memory was 174.5 MB in the beginning and 158.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 1628.33 ms. Allocated memory was 199.2 MB in the beginning and 263.7 MB in the end (delta: 64.5 MB). Free memory was 158.4 MB in the beginning and 168.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 95]: 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: [L1] int __return_main; [L6] int __tmp_31_0; [L7] int __tmp_28_0; [L8] int __return_65; [L9] int __tmp_22_0; [L10] int __tmp_22_1; [L11] int __tmp_25_0; [L12] int __tmp_25_1; [L15] unsigned int main__x; [L16] unsigned int main__y = 1; [L18] int main____CPAchecker_TMP_0; [L19] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L20] COND TRUE !(main____CPAchecker_TMP_0 == 0) [L22] COND TRUE (main__x % 3) == 1 [L24] main__x = main__x + 2 [L25] main__y = 0 [L26] __tmp_31_0 = main____CPAchecker_TMP_0 [L28] main____CPAchecker_TMP_0 = __tmp_31_0 [L41] int main____CPAchecker_TMP_0; [L42] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L43] COND FALSE !(!(main____CPAchecker_TMP_0 == 0)) [L86] COND TRUE main__y == 0 [L89] int __tmp_1; [L90] __tmp_1 = (main__x % 3) == 0 [L91] int __VERIFIER_assert__cond; [L92] __VERIFIER_assert__cond = __tmp_1 [L93] COND TRUE __VERIFIER_assert__cond == 0 [L95] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...