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/ldv-regression/test21-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 03:27:44,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 03:27:44,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 03:27:44,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 03:27:44,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 03:27:44,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 03:27:44,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 03:27:44,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 03:27:44,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 03:27:44,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 03:27:44,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 03:27:44,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 03:27:44,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 03:27:44,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 03:27:44,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 03:27:44,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 03:27:44,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 03:27:44,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 03:27:44,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 03:27:44,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 03:27:44,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 03:27:44,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 03:27:44,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 03:27:44,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 03:27:44,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 03:27:44,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 03:27:44,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 03:27:44,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 03:27:44,177 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 [2019-08-31 03:27:44,191 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 03:27:44,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 03:27:44,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 03:27:44,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 03:27:44,194 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 03:27:44,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 03:27:44,194 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 03:27:44,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 03:27:44,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 03:27:44,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 03:27:44,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 03:27:44,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 03:27:44,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 03:27:44,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 03:27:44,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 03:27:44,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 03:27:44,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 03:27:44,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 03:27:44,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 03:27:44,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 03:27:44,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 03:27:44,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 03:27:44,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 03:27:44,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 03:27:44,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 03:27:44,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 03:27:44,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 03:27:44,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 03:27:44,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 03:27:44,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 03:27:44,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 03:27:44,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 03:27:44,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 03:27:44,267 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 03:27:44,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-2.c [2019-08-31 03:27:44,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ec0557e/b9ff64341d7f46ea97da4ead78cca4aa/FLAG9a24faf27 [2019-08-31 03:27:44,807 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 03:27:44,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-2.c [2019-08-31 03:27:44,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ec0557e/b9ff64341d7f46ea97da4ead78cca4aa/FLAG9a24faf27 [2019-08-31 03:27:45,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ec0557e/b9ff64341d7f46ea97da4ead78cca4aa [2019-08-31 03:27:45,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 03:27:45,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 03:27:45,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 03:27:45,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 03:27:45,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 03:27:45,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591ef53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45, skipping insertion in model container [2019-08-31 03:27:45,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,248 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 03:27:45,264 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 03:27:45,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:27:45,461 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 03:27:45,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:27:45,499 INFO L192 MainTranslator]: Completed translation [2019-08-31 03:27:45,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45 WrapperNode [2019-08-31 03:27:45,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 03:27:45,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 03:27:45,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 03:27:45,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 03:27:45,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:45,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 03:27:45,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 03:27:45,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 03:27:45,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 03:27:45,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:45" (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 [2019-08-31 03:27:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 03:27:45,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 03:27:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-08-31 03:27:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-08-31 03:27:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-08-31 03:27:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 03:27:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 03:27:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-31 03:27:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-31 03:27:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 03:27:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 03:27:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 03:27:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-08-31 03:27:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 03:27:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 03:27:45,971 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 03:27:45,972 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 03:27:45,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:27:45 BoogieIcfgContainer [2019-08-31 03:27:45,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 03:27:45,974 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 03:27:45,974 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 03:27:45,974 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 03:27:45,975 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:27:45" (1/1) ... [2019-08-31 03:27:46,011 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 03:27:46,012 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 03:27:46,020 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 03:27:46,028 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 03:27:46,030 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 03:27:46,120 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_6|], 10=[|v_#valid_7|]} [2019-08-31 03:27:46,152 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:46,164 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-08-31 03:27:46,165 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:46,252 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:27:46,259 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:46,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:46,305 INFO L341 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2019-08-31 03:27:46,306 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 34 [2019-08-31 03:27:46,308 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:46,423 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-08-31 03:27:46,423 INFO L567 ElimStorePlain]: treesize reduction 8, result has 90.9 percent of original size [2019-08-31 03:27:46,424 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:46,425 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:80 [2019-08-31 03:27:46,448 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 55 for LOIs [2019-08-31 03:27:46,680 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-08-31 03:27:46,681 INFO L341 Elim1Store]: treesize reduction 111, result has 47.9 percent of original size [2019-08-31 03:27:46,681 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 111 [2019-08-31 03:27:46,683 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:46,829 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-08-31 03:27:46,829 INFO L567 ElimStorePlain]: treesize reduction 40, result has 72.0 percent of original size [2019-08-31 03:27:46,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-31 03:27:46,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-31 03:27:46,841 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:46,844 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:75, output treesize:113 [2019-08-31 03:27:46,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:46,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:46,909 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2019-08-31 03:27:46,910 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:47,084 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-08-31 03:27:47,085 INFO L567 ElimStorePlain]: treesize reduction 18, result has 87.5 percent of original size [2019-08-31 03:27:47,085 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:47,086 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:176, output treesize:126 [2019-08-31 03:27:47,134 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:47,135 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:47,137 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2019-08-31 03:27:47,138 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:47,288 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-08-31 03:27:47,288 INFO L567 ElimStorePlain]: treesize reduction 18, result has 87.5 percent of original size [2019-08-31 03:27:47,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:47,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:176, output treesize:126 [2019-08-31 03:27:47,326 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 03:27:47,327 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 03:27:47,329 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 60#(and (<= 0 |~#d1~0.offset|) (<= main_~pd2~0.offset 0) (= main_~pd2~0.offset main_~pd1~0.offset) (<= |#NULL.base| 0) (<= 0 |~#d2~0.offset|) (<= 0 |#NULL.base|) (<= |~#d2~0.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 main_~pd1~0.offset) (<= |~#d1~0.offset| 0) (not (= (select (select |#memory_int| main_~pd1~0.base) main_~pd1~0.offset) (select (select |#memory_int| main_~pd2~0.base) (+ main_~pd2~0.offset 4)))) (<= main_~pd1~0.offset 0) (<= 0 main_~pd2~0.offset) (= main_~pd2~0.base main_~pd1~0.base) (or (not (= 0 main_~pd1~0.base)) (not (= main_~pd1~0.offset 0)))) [2019-08-31 03:27:47,344 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 03:27:47,344 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 03:27:47,346 INFO L168 Benchmark]: Toolchain (without parser) took 2114.57 ms. Allocated memory was 132.1 MB in the beginning and 221.8 MB in the end (delta: 89.7 MB). Free memory was 86.9 MB in the beginning and 144.1 MB in the end (delta: -57.2 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:47,348 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.1 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. [2019-08-31 03:27:47,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.75 ms. Allocated memory is still 132.1 MB. Free memory was 86.4 MB in the beginning and 76.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:47,350 INFO L168 Benchmark]: Boogie Preprocessor took 114.85 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 76.5 MB in the beginning and 175.0 MB in the end (delta: -98.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:47,350 INFO L168 Benchmark]: RCFGBuilder took 357.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 158.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:47,351 INFO L168 Benchmark]: Sifa took 1370.84 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.7 MB in the beginning and 144.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:47,356 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 132.1 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 267.75 ms. Allocated memory is still 132.1 MB. Free memory was 86.4 MB in the beginning and 76.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.85 ms. Allocated memory was 132.1 MB in the beginning and 199.2 MB in the end (delta: 67.1 MB). Free memory was 76.5 MB in the beginning and 175.0 MB in the end (delta: -98.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.54 ms. Allocated memory is still 199.2 MB. Free memory was 175.0 MB in the beginning and 158.7 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Sifa took 1370.84 ms. Allocated memory was 199.2 MB in the beginning and 221.8 MB in the end (delta: 22.5 MB). Free memory was 158.7 MB in the beginning and 144.1 MB in the end (delta: 14.6 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 1.3s OVERALL_TIME, 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 23 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 16 TOOLS_POST_APPLICATIONS, 0.7s TOOLS_POST_TIME, 6 TOOLS_POST_CALL_APPLICATIONS, 0.4s TOOLS_POST_CALL_TIME, 5 TOOLS_POST_RETURN_APPLICATIONS, 0.0s TOOLS_POST_RETURN_TIME, 1.2s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 23 FLUID_QUERIES, 1 FLUID_YES_ANSWERS, 6 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 1 DOMAIN_ALPHA_APPLICATIONS, 0.0s DOMAIN_ALPHA_TIME, 0 DOMAIN_WIDEN_APPLICATIONS, 0.0s DOMAIN_WIDEN_TIME, 0 DOMAIN_ISSUBSETEQ_APPLICATIONS, 0.0s DOMAIN_ISSUBSETEQ_TIME, 1 DOMAIN_ISBOTTOM_APPLICATIONS, 0.0s DOMAIN_ISBOTTOM_TIME, 0 LOOP_SUMMARIZER_APPLICATIONS, 0 LOOP_SUMMARIZER_CACHE_MISSES, 0.0s LOOP_SUMMARIZER_OVERALL_TIME, 0.0s LOOP_SUMMARIZER_NEW_COMPUTATION_TIME, 0 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 5 CALL_SUMMARIZER_APPLICATIONS, 4 CALL_SUMMARIZER_CACHE_MISSES, 0.8s CALL_SUMMARIZER_OVERALL_TIME, 0.8s CALL_SUMMARIZER_NEW_COMPUTATION_TIME, 0.0s PROCEDURE_GRAPH_BUILDER_TIME, 0.0s PATH_EXPR_TIME, 0.0s REGEX_TO_DAG_TIME, 0.0s DAG_COMPRESSION_TIME, 71 DAG_COMPRESSION_PROCESSED_NODES, 40 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 42]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 60#(and (<= 0 |~#d1~0.offset|) (<= main_~pd2~0.offset 0) (= main_~pd2~0.offset main_~pd1~0.offset) (<= |#NULL.base| 0) (<= 0 |~#d2~0.offset|) (<= 0 |#NULL.base|) (<= |~#d2~0.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0) (<= 0 main_~pd1~0.offset) (<= |~#d1~0.offset| 0) (not (= (select (select |#memory_int| main_~pd1~0.base) main_~pd1~0.offset) (select (select |#memory_int| main_~pd2~0.base) (+ main_~pd2~0.offset 4)))) (<= main_~pd1~0.offset 0) (<= 0 main_~pd2~0.offset) (= main_~pd2~0.base main_~pd1~0.base) (or (not (= 0 main_~pd1~0.base)) (not (= main_~pd1~0.offset 0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...