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/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 03:30:13,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 03:30:13,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 03:30:13,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 03:30:13,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 03:30:13,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 03:30:13,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 03:30:13,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 03:30:13,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 03:30:13,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 03:30:13,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 03:30:13,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-08-31 03:30:13,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 03:30:13,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 03:30:13,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 03:30:13,897 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 03:30:13,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 03:30:13,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 03:30:13,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 03:30:13,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 03:30:13,929 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 03:30:13,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 03:30:13,929 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 03:30:13,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 03:30:13,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 03:30:13,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 03:30:13,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 03:30:13,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 03:30:13,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 03:30:13,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 03:30:13,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 03:30:13,933 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 03:30:13,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 03:30:13,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 03:30:13,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 03:30:13,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 03:30:13,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 03:30:13,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 03:30:13,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 03:30:13,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 03:30:13,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 03:30:13,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 03:30:13,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 03:30:13,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 03:30:13,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 03:30:14,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 03:30:14,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 03:30:14,030 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 03:30:14,031 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 03:30:14,032 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 03:30:14,032 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2019-08-31 03:30:14,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ef96bbc/d1a5f1559f714360a20adcf7438e5951/FLAG7da0f056f [2019-08-31 03:30:14,527 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 03:30:14,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2019-08-31 03:30:14,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ef96bbc/d1a5f1559f714360a20adcf7438e5951/FLAG7da0f056f [2019-08-31 03:30:14,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3ef96bbc/d1a5f1559f714360a20adcf7438e5951 [2019-08-31 03:30:14,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 03:30:14,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 03:30:14,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 03:30:14,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 03:30:14,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 03:30:14,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:30:14" (1/1) ... [2019-08-31 03:30:14,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27da9f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:14, skipping insertion in model container [2019-08-31 03:30:14,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:30:14" (1/1) ... [2019-08-31 03:30:14,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 03:30:14,930 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 03:30:15,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:30:15,105 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 03:30:15,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:30:15,139 INFO L192 MainTranslator]: Completed translation [2019-08-31 03:30:15,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15 WrapperNode [2019-08-31 03:30:15,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 03:30:15,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 03:30:15,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 03:30:15,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 03:30:15,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 03:30:15,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 03:30:15,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 03:30:15,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 03:30:15,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:30:15" (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 03:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 03:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 03:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-08-31 03:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2019-08-31 03:30:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 03:30:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 03:30:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 03:30:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-08-31 03:30:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-08-31 03:30:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 03:30:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-31 03:30:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 03:30:15,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 03:30:15,609 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 03:30:15,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:30:15 BoogieIcfgContainer [2019-08-31 03:30:15,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 03:30:15,611 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 03:30:15,611 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 03:30:15,611 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 03:30:15,612 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:30:15" (1/1) ... [2019-08-31 03:30:15,647 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 03:30:15,647 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 03:30:15,654 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 03:30:15,662 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 03:30:15,664 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 03:30:15,752 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_7|], 21=[|v_#valid_8|]} [2019-08-31 03:30:15,788 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,791 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,805 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2019-08-31 03:30:15,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:30:15,950 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-08-31 03:30:15,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:15,959 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,963 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,966 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,968 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,971 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,985 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 03:30:15,994 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2019-08-31 03:30:15,996 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,181 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-08-31 03:30:16,182 INFO L567 ElimStorePlain]: treesize reduction 12, result has 89.8 percent of original size [2019-08-31 03:30:16,185 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,187 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:143, output treesize:106 [2019-08-31 03:30:16,235 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 74 for LOIs [2019-08-31 03:30:16,281 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_11|, |v_#memory_$Pointer$.base_11|], 2=[|v_#memory_int_11|]} [2019-08-31 03:30:16,293 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 0 case distinctions, treesize of input 15 treesize of output 1 [2019-08-31 03:30:16,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,317 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,329 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 0 case distinctions, treesize of input 15 treesize of output 1 [2019-08-31 03:30:16,329 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,345 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,382 INFO L341 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2019-08-31 03:30:16,383 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 03:30:16,386 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,400 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,400 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,401 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:58, output treesize:24 [2019-08-31 03:30:16,440 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,441 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-08-31 03:30:16,442 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-08-31 03:30:16,480 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,503 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,504 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2019-08-31 03:30:16,505 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-08-31 03:30:16,539 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:30:16,540 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:30:16,541 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:48 [2019-08-31 03:30:16,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-31 03:30:16,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-31 03:30:16,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-31 03:30:16,581 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 03:30:16,581 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 03:30:16,584 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 36#(and (= 0 |#NULL.base|) (= 1 (select |#valid| |~#global~0.base|)) (< |~#b~0.base| |#StackHeapBarrier|) (<= 0 |#NULL.base|) (= 4 (select |#length| |~#a~0.base|)) (= (select |#valid| |~#b~0.base|) 1) (<= 0 |#NULL.offset|) (<= 0 |~#b~0.offset|) (= 0 |~#b~0.offset|) (<= 0 main_~pd~0.offset) (= |~#global~0.base| main_~pd~0.base) (<= main_~pd~0.offset 0) (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)) (<= |~#a~0.offset| 0) (< |~#a~0.base| |#StackHeapBarrier|) (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) 1) (<= 0 |~#global~0.offset|) (= |~#global~0.offset| main_~pd~0.offset) (<= |~#b~0.offset| 0) (= |~#global~0.offset| 0) (< |~#global~0.base| |#StackHeapBarrier|) (= 4 (select |#length| |~#b~0.base|)) (= 1 (select |#valid| |~#a~0.base|)) (<= |#NULL.base| 0) (= (select (select |old(#memory_$Pointer$.base)| |~#global~0.base|) |~#global~0.offset|) |~#a~0.base|) (<= |#NULL.offset| 0) (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (= (select (select |old(#memory_$Pointer$.base)| |~#global~0.base|) (+ |~#global~0.offset| 4)) |~#b~0.base|) (<= 0 |~#a~0.offset|) (= (select (select |old(#memory_$Pointer$.offset)| |~#global~0.base|) |~#global~0.offset|) |~#a~0.offset|) (= 0 |~#a~0.offset|) (= (select |#length| |~#global~0.base|) 8) (= 0 (select |#valid| 0)) (= |#NULL.offset| 0) (= (select (select |old(#memory_$Pointer$.offset)| |~#global~0.base|) (+ |~#global~0.offset| 4)) |~#b~0.offset|) (<= |~#global~0.offset| 0)) [2019-08-31 03:30:16,606 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 03:30:16,606 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 03:30:16,609 INFO L168 Benchmark]: Toolchain (without parser) took 1714.55 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 86.3 MB in the beginning and 81.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 65.4 MB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,610 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.18 ms. Allocated memory is still 138.4 MB. Free memory was 85.9 MB in the beginning and 76.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,617 INFO L168 Benchmark]: Boogie Preprocessor took 134.71 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 76.0 MB in the beginning and 175.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,620 INFO L168 Benchmark]: RCFGBuilder took 333.33 ms. Allocated memory is still 198.7 MB. Free memory was 175.4 MB in the beginning and 159.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,622 INFO L168 Benchmark]: Sifa took 995.82 ms. Allocated memory is still 198.7 MB. Free memory was 159.5 MB in the beginning and 81.2 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2019-08-31 03:30:16,628 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.18 ms. Allocated memory is still 138.4 MB. Free memory was 85.9 MB in the beginning and 76.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.71 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 76.0 MB in the beginning and 175.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 333.33 ms. Allocated memory is still 198.7 MB. Free memory was 175.4 MB in the beginning and 159.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * Sifa took 995.82 ms. Allocated memory is still 198.7 MB. Free memory was 159.5 MB in the beginning and 81.2 MB in the end (delta: 78.3 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 0.9s OVERALL_TIME, 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 15 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 11 TOOLS_POST_APPLICATIONS, 0.6s TOOLS_POST_TIME, 4 TOOLS_POST_CALL_APPLICATIONS, 0.1s TOOLS_POST_CALL_TIME, 3 TOOLS_POST_RETURN_APPLICATIONS, 0.2s TOOLS_POST_RETURN_TIME, 0.8s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 15 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 4 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 0 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, 3 CALL_SUMMARIZER_APPLICATIONS, 3 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, 46 DAG_COMPRESSION_PROCESSED_NODES, 29 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 31]: 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 36#(and (= 0 |#NULL.base|) (= 1 (select |#valid| |~#global~0.base|)) (< |~#b~0.base| |#StackHeapBarrier|) (<= 0 |#NULL.base|) (= 4 (select |#length| |~#a~0.base|)) (= (select |#valid| |~#b~0.base|) 1) (<= 0 |#NULL.offset|) (<= 0 |~#b~0.offset|) (= 0 |~#b~0.offset|) (<= 0 main_~pd~0.offset) (= |~#global~0.base| main_~pd~0.base) (<= main_~pd~0.offset 0) (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|)) (<= |~#a~0.offset| 0) (< |~#a~0.base| |#StackHeapBarrier|) (= (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|) 1) (<= 0 |~#global~0.offset|) (= |~#global~0.offset| main_~pd~0.offset) (<= |~#b~0.offset| 0) (= |~#global~0.offset| 0) (< |~#global~0.base| |#StackHeapBarrier|) (= 4 (select |#length| |~#b~0.base|)) (= 1 (select |#valid| |~#a~0.base|)) (<= |#NULL.base| 0) (= (select (select |old(#memory_$Pointer$.base)| |~#global~0.base|) |~#global~0.offset|) |~#a~0.base|) (<= |#NULL.offset| 0) (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (= (select (select |old(#memory_$Pointer$.base)| |~#global~0.base|) (+ |~#global~0.offset| 4)) |~#b~0.base|) (<= 0 |~#a~0.offset|) (= (select (select |old(#memory_$Pointer$.offset)| |~#global~0.base|) |~#global~0.offset|) |~#a~0.offset|) (= 0 |~#a~0.offset|) (= (select |#length| |~#global~0.base|) 8) (= 0 (select |#valid| 0)) (= |#NULL.offset| 0) (= (select (select |old(#memory_$Pointer$.offset)| |~#global~0.base|) (+ |~#global~0.offset| 4)) |~#b~0.offset|) (<= |~#global~0.offset| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...