java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f3d0b09 [2019-08-08 11:47:00,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-08 11:47:00,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-08 11:47:00,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-08 11:47:00,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-08 11:47:00,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-08 11:47:00,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-08 11:47:00,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-08 11:47:00,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-08 11:47:00,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-08 11:47:00,607 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-08 11:47:00,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-08 11:47:00,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-08 11:47:00,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-08 11:47:00,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-08 11:47:00,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-08 11:47:00,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-08 11:47:00,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-08 11:47:00,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-08 11:47:00,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-08 11:47:00,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-08 11:47:00,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-08 11:47:00,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-08 11:47:00,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-08 11:47:00,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-08 11:47:00,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-08 11:47:00,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-08 11:47:00,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-08 11:47:00,634 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 [2019-08-08 11:47:00,648 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-08 11:47:00,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-08 11:47:00,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-08 11:47:00,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-08 11:47:00,649 INFO L138 SettingsManager]: * Use SBE=true [2019-08-08 11:47:00,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-08 11:47:00,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-08 11:47:00,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-08 11:47:00,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-08 11:47:00,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-08 11:47:00,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-08 11:47:00,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-08 11:47:00,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-08 11:47:00,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-08 11:47:00,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-08 11:47:00,652 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-08 11:47:00,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-08 11:47:00,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-08 11:47:00,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-08 11:47:00,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-08 11:47:00,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-08 11:47:00,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-08 11:47:00,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-08 11:47:00,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-08 11:47:00,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-08 11:47:00,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-08 11:47:00,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-08 11:47:00,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-08 11:47:00,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-08 11:47:00,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-08 11:47:00,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-08 11:47:00,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-08 11:47:00,697 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-08 11:47:00,697 INFO L275 PluginConnector]: CDTParser initialized [2019-08-08 11:47:00,698 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2019-08-08 11:47:00,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae47005/599821f9251c46e58f69244c9b1b022e/FLAG5ca4e7b00 [2019-08-08 11:47:01,178 INFO L306 CDTParser]: Found 1 translation units. [2019-08-08 11:47:01,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2019-08-08 11:47:01,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae47005/599821f9251c46e58f69244c9b1b022e/FLAG5ca4e7b00 [2019-08-08 11:47:01,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6ae47005/599821f9251c46e58f69244c9b1b022e [2019-08-08 11:47:01,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-08 11:47:01,602 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-08 11:47:01,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-08 11:47:01,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-08 11:47:01,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-08 11:47:01,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7060e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01, skipping insertion in model container [2019-08-08 11:47:01,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,619 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-08 11:47:01,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-08 11:47:01,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:47:01,826 INFO L188 MainTranslator]: Completed pre-run [2019-08-08 11:47:01,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-08 11:47:01,870 INFO L192 MainTranslator]: Completed translation [2019-08-08 11:47:01,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01 WrapperNode [2019-08-08 11:47:01,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-08 11:47:01,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-08 11:47:01,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-08 11:47:01,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-08 11:47:01,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (1/1) ... [2019-08-08 11:47:01,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-08 11:47:01,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-08 11:47:01,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-08 11:47:01,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-08 11:47:01,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:47:01" (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 [2019-08-08 11:47:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-08 11:47:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-08 11:47:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-08 11:47:02,045 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-08 11:47:02,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-08 11:47:02,220 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-08 11:47:02,221 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-08 11:47:02,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:47:02 BoogieIcfgContainer [2019-08-08 11:47:02,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-08 11:47:02,222 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-08 11:47:02,223 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-08 11:47:02,223 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-08 11:47:02,224 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:47:02" (1/1) ... [2019-08-08 11:47:02,233 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-08 11:47:02,236 INFO L155 IcfgInterpreter]: Building call graph [2019-08-08 11:47:02,242 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-08 11:47:02,249 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-08 11:47:02,250 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-08 11:47:02,283 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-08 11:47:02,355 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 22 [2019-08-08 11:47:02,363 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-08 11:47:02,364 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-08 11:47:02,367 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 34#(and (exists ((|v_main_#t~nondet1_7| Int)) (not (= (mod |v_main_#t~nondet1_7| 4294967296) 0))) (exists ((|v_main_#t~nondet1_8| Int)) (= (mod |v_main_#t~nondet1_8| 4294967296) 0)) (exists ((v_main_~z~0_BEFORE_CALL_1 Int) (v_main_~y~0_BEFORE_CALL_1 Int)) (= |__VERIFIER_assert_#in~cond| (ite (= (mod v_main_~y~0_BEFORE_CALL_1 4294967296) (mod v_main_~z~0_BEFORE_CALL_1 4294967296)) 1 0))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-08 11:47:02,369 WARN L88 terpretationObserver]: Some locations of interest might be reachable, see reported results. [2019-08-08 11:47:02,379 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-08 11:47:02,381 INFO L168 Benchmark]: Toolchain (without parser) took 778.17 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 86.9 MB in the beginning and 158.7 MB in the end (delta: -71.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-08 11:47:02,383 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-08 11:47:02,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.41 ms. Allocated memory is still 137.9 MB. Free memory was 86.5 MB in the beginning and 77.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-08 11:47:02,385 INFO L168 Benchmark]: Boogie Preprocessor took 114.06 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 177.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-08-08 11:47:02,387 INFO L168 Benchmark]: RCFGBuilder took 235.40 ms. Allocated memory is still 197.7 MB. Free memory was 177.1 MB in the beginning and 165.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-08-08 11:47:02,388 INFO L168 Benchmark]: Symbolic Interpretation took 156.41 ms. Allocated memory is still 197.7 MB. Free memory was 165.0 MB in the beginning and 158.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-08-08 11:47:02,395 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Interpreter reached this location of interest. Location might be reachable.. Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 268.41 ms. Allocated memory is still 137.9 MB. Free memory was 86.5 MB in the beginning and 77.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.06 ms. Allocated memory was 137.9 MB in the beginning and 197.7 MB in the end (delta: 59.8 MB). Free memory was 77.6 MB in the beginning and 177.1 MB in the end (delta: -99.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 235.40 ms. Allocated memory is still 197.7 MB. Free memory was 177.1 MB in the beginning and 165.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 156.41 ms. Allocated memory is still 197.7 MB. Free memory was 165.0 MB in the beginning and 158.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...