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/test19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 03:27:38,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 03:27:38,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 03:27:38,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 03:27:38,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 03:27:38,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 03:27:38,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 03:27:38,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 03:27:38,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 03:27:38,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 03:27:38,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 03:27:38,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 03:27:38,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 03:27:38,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 03:27:38,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 03:27:38,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 03:27:38,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 03:27:38,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 03:27:38,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 03:27:38,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 03:27:38,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 03:27:38,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 03:27:38,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 03:27:38,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 03:27:38,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 03:27:38,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 03:27:38,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 03:27:38,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 03:27:38,142 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 03:27:38,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 03:27:38,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 03:27:38,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 03:27:38,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 03:27:38,159 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 03:27:38,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 03:27:38,160 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 03:27:38,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 03:27:38,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 03:27:38,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 03:27:38,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 03:27:38,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 03:27:38,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 03:27:38,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 03:27:38,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 03:27:38,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 03:27:38,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 03:27:38,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 03:27:38,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 03:27:38,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 03:27:38,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 03:27:38,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 03:27:38,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 03:27:38,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 03:27:38,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 03:27:38,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 03:27:38,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 03:27:38,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 03:27:38,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 03:27:38,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 03:27:38,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 03:27:38,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 03:27:38,217 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 03:27:38,217 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 03:27:38,218 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2019-08-31 03:27:38,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85fba6d2/548b7f73fbb84a61ab743d30c6ded5be/FLAGe99201def [2019-08-31 03:27:38,717 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 03:27:38,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2019-08-31 03:27:38,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85fba6d2/548b7f73fbb84a61ab743d30c6ded5be/FLAGe99201def [2019-08-31 03:27:39,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85fba6d2/548b7f73fbb84a61ab743d30c6ded5be [2019-08-31 03:27:39,145 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 03:27:39,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 03:27:39,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 03:27:39,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 03:27:39,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 03:27:39,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3f2dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39, skipping insertion in model container [2019-08-31 03:27:39,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,163 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 03:27:39,183 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 03:27:39,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:27:39,416 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 03:27:39,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:27:39,454 INFO L192 MainTranslator]: Completed translation [2019-08-31 03:27:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39 WrapperNode [2019-08-31 03:27:39,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 03:27:39,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 03:27:39,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 03:27:39,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 03:27:39,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 03:27:39,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 03:27:39,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 03:27:39,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 03:27:39,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:27:39" (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 03:27:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 03:27:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 03:27:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-08-31 03:27:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 03:27:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-31 03:27:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 03:27:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 03:27:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-08-31 03:27:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-08-31 03:27:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 03:27:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 03:27:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 03:27:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-31 03:27:39,862 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 03:27:39,862 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 03:27:39,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:27:39 BoogieIcfgContainer [2019-08-31 03:27:39,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 03:27:39,864 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 03:27:39,864 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 03:27:39,865 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 03:27:39,866 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:27:39" (1/1) ... [2019-08-31 03:27:39,925 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 03:27:39,925 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 03:27:39,936 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 03:27:39,951 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 03:27:39,956 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 03:27:40,070 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-31 03:27:40,071 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:40,105 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:27:40,106 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:40,106 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-31 03:27:40,124 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-08-31 03:27:40,174 INFO L392 ElimStorePlain]: Different costs {0=[|v_old(#length)_BEFORE_CALL_1|], 36=[|v_old(#valid)_BEFORE_CALL_1|]} [2019-08-31 03:27:40,197 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,200 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,208 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,212 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:27:40,220 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 29 [2019-08-31 03:27:40,221 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:40,634 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-08-31 03:27:40,637 INFO L567 ElimStorePlain]: treesize reduction 9, result has 96.7 percent of original size [2019-08-31 03:27:40,871 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-08-31 03:27:40,873 INFO L341 Elim1Store]: treesize reduction 177, result has 35.2 percent of original size [2019-08-31 03:27:40,874 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 105 treesize of output 169 [2019-08-31 03:27:40,878 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,169 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-08-31 03:27:41,170 INFO L567 ElimStorePlain]: treesize reduction 28, result has 88.7 percent of original size [2019-08-31 03:27:41,171 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,171 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:265, output treesize:220 [2019-08-31 03:27:41,182 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_int_9|], 6=[|v_#memory_$Pointer$.offset_8|, |v_#memory_$Pointer$.base_8|]} [2019-08-31 03:27:41,215 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-08-31 03:27:41,217 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2019-08-31 03:27:41,217 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,254 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:27:41,367 INFO L341 Elim1Store]: treesize reduction 40, result has 51.8 percent of original size [2019-08-31 03:27:41,368 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 49 [2019-08-31 03:27:41,369 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,416 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:27:41,482 INFO L341 Elim1Store]: treesize reduction 40, result has 51.8 percent of original size [2019-08-31 03:27:41,482 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 49 [2019-08-31 03:27:41,484 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,542 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:27:41,543 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:27:41,543 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:86, output treesize:108 [2019-08-31 03:27:41,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-08-31 03:27:41,564 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-08-31 03:27:41,602 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 03:27:41,602 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 03:27:41,606 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 42#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |main_~#pb~1.offset|) (= |#length| (store (store (store (store |old(#length)| |main_~#a~0.base| 4) |main_~#b~0.base| 4) |main_~#pa~1.base| 4) |main_~#pb~1.base| 4)) (= 0 |#NULL.base|) (<= |main_~#b~0.offset| 0) (< |main_~#pa~1.base| |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (<= 0 |#NULL.base|) (<= |main_~#pb~1.offset| 0) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base|) 0) (<= 0 |#NULL.offset|) (not (= 0 |main_~#pa~1.base|)) (<= (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483647) (= |main_~#b~0.offset| 0) (= (select (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base|) 0) (< |main_~#pb~1.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| 0) (< |main_~#b~0.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) (= (store (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base| 1) |#valid|) (<= 0 |main_~#a~0.offset|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.base|) (<= |main_~#a~0.offset| 0) (<= 0 (+ (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483648)) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483648)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (<= 0 |main_~#pb~1.offset|) (<= 0 |main_~#b~0.offset|) (<= |main_~#pa~1.offset| 0) (<= (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483647) (not (= |main_~#pb~1.base| 0)) (<= 0 |main_~#pa~1.offset|) (= |#NULL.offset| 0) (= |main_~#b~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= 0 |main_~#pa~1.offset|)) [2019-08-31 03:27:41,627 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 03:27:41,627 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 03:27:41,630 INFO L168 Benchmark]: Toolchain (without parser) took 2482.54 ms. Allocated memory was 132.1 MB in the beginning and 221.2 MB in the end (delta: 89.1 MB). Free memory was 88.3 MB in the beginning and 108.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,634 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.55 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 78.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,642 INFO L168 Benchmark]: Boogie Preprocessor took 122.82 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.3 MB in the beginning and 174.9 MB in the end (delta: -96.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,643 INFO L168 Benchmark]: RCFGBuilder took 285.28 ms. Allocated memory is still 198.7 MB. Free memory was 174.9 MB in the beginning and 158.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,644 INFO L168 Benchmark]: Sifa took 1763.28 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 158.8 MB in the beginning and 108.4 MB in the end (delta: 50.4 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2019-08-31 03:27:41,658 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.55 ms. Allocated memory is still 132.1 MB. Free memory was 88.1 MB in the beginning and 78.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.82 ms. Allocated memory was 132.1 MB in the beginning and 198.7 MB in the end (delta: 66.6 MB). Free memory was 78.3 MB in the beginning and 174.9 MB in the end (delta: -96.6 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.28 ms. Allocated memory is still 198.7 MB. Free memory was 174.9 MB in the beginning and 158.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Sifa took 1763.28 ms. Allocated memory was 198.7 MB in the beginning and 221.2 MB in the end (delta: 22.5 MB). Free memory was 158.8 MB in the beginning and 108.4 MB in the end (delta: 50.4 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 1.7s OVERALL_TIME, 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 11 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 8 TOOLS_POST_APPLICATIONS, 0.5s TOOLS_POST_TIME, 3 TOOLS_POST_CALL_APPLICATIONS, 1.1s TOOLS_POST_CALL_TIME, 2 TOOLS_POST_RETURN_APPLICATIONS, 0.0s TOOLS_POST_RETURN_TIME, 1.5s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 11 FLUID_QUERIES, 1 FLUID_YES_ANSWERS, 3 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, 0 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, 2 CALL_SUMMARIZER_APPLICATIONS, 2 CALL_SUMMARIZER_CACHE_MISSES, 0.5s CALL_SUMMARIZER_OVERALL_TIME, 0.5s 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, 36 DAG_COMPRESSION_PROCESSED_NODES, 24 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 22]: 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 42#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |main_~#pb~1.offset|) (= |#length| (store (store (store (store |old(#length)| |main_~#a~0.base| 4) |main_~#b~0.base| 4) |main_~#pa~1.base| 4) |main_~#pb~1.base| 4)) (= 0 |#NULL.base|) (<= |main_~#b~0.offset| 0) (< |main_~#pa~1.base| |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (<= 0 |#NULL.base|) (<= |main_~#pb~1.offset| 0) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base|) 0) (<= 0 |#NULL.offset|) (not (= 0 |main_~#pa~1.base|)) (<= (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483647) (= |main_~#b~0.offset| 0) (= (select (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base|) 0) (< |main_~#pb~1.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| 0) (< |main_~#b~0.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (<= |#NULL.base| 0) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) (= (store (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base| 1) |#valid|) (<= 0 |main_~#a~0.offset|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.base|) (<= |main_~#a~0.offset| 0) (<= 0 (+ (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483648)) (<= |#NULL.offset| 0) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483648)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (<= 0 |main_~#pb~1.offset|) (<= 0 |main_~#b~0.offset|) (<= |main_~#pa~1.offset| 0) (<= (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483647) (not (= |main_~#pb~1.base| 0)) (<= 0 |main_~#pa~1.offset|) (= |#NULL.offset| 0) (= |main_~#b~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= 0 |main_~#pa~1.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...