/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:20:14,875 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-21 16:20:14,989 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 [2020-07-21 16:20:15,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:20:15,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:20:15,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:20:15,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:20:15,037 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:20:15,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:20:15,037 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:20:15,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:20:15,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:20:15,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:20:15,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:20:15,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:20:15,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:20:15,039 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:20:15,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:20:15,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:20:15,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:20:15,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:20:15,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:20:15,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:20:15,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:20:15,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:20:15,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:20:15,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:20:15,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:20:15,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:20:15,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:20:15,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:20:15,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:20:15,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 16:20:15,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:20:15,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:20:15,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:20:15,368 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:20:15,368 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:20:15,369 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2020-07-21 16:20:15,448 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe383de0/a3fb981a8a4547229ab6da2d5711750c/FLAGc15ddce68 [2020-07-21 16:20:15,943 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:20:15,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2020-07-21 16:20:15,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe383de0/a3fb981a8a4547229ab6da2d5711750c/FLAGc15ddce68 [2020-07-21 16:20:16,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe383de0/a3fb981a8a4547229ab6da2d5711750c [2020-07-21 16:20:16,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:20:16,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:20:16,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:20:16,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:20:16,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:20:16,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1218ee25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16, skipping insertion in model container [2020-07-21 16:20:16,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:20:16,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:20:16,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:20:16,512 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:20:16,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:20:16,548 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:20:16,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16 WrapperNode [2020-07-21 16:20:16,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:20:16,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:20:16,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:20:16,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:20:16,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (1/1) ... [2020-07-21 16:20:16,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:20:16,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:20:16,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:20:16,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:20:16,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (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 [2020-07-21 16:20:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:20:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:20:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-21 16:20:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-07-21 16:20:16,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:20:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:20:16,746 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-21 16:20:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 16:20:16,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 16:20:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-07-21 16:20:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 16:20:16,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:20:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:20:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 16:20:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 16:20:16,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-21 16:20:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:20:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 16:20:16,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 16:20:17,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:20:17,073 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 16:20:17,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:20:17 BoogieIcfgContainer [2020-07-21 16:20:17,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:20:17,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:20:17,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:20:17,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:20:17,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:20:16" (1/3) ... [2020-07-21 16:20:17,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a11879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:20:17, skipping insertion in model container [2020-07-21 16:20:17,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:20:16" (2/3) ... [2020-07-21 16:20:17,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a11879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:20:17, skipping insertion in model container [2020-07-21 16:20:17,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:20:17" (3/3) ... [2020-07-21 16:20:17,104 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-1.c [2020-07-21 16:20:17,116 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:20:17,124 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:20:17,140 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:20:17,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:20:17,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:20:17,168 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:20:17,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:20:17,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:20:17,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:20:17,169 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:20:17,169 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:20:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-21 16:20:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-21 16:20:17,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:20:17,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:20:17,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:20:17,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:20:17,207 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2020-07-21 16:20:17,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:20:17,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1578529184] [2020-07-21 16:20:17,218 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:20:17,414 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:20:17,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:20:17,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 87 conjunts are in the unsatisfiable core [2020-07-21 16:20:17,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:20:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-07-21 16:20:17,527 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2020-07-21 16:20:17,528 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,608 INFO L624 ElimStorePlain]: treesize reduction 4, result has 93.9 percent of original size [2020-07-21 16:20:17,609 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,610 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:62 [2020-07-21 16:20:17,762 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_BEFORE_CALL_2|, |v_#memory_$Pointer$.offset_BEFORE_CALL_2|], 2=[|v_#memory_int_BEFORE_CALL_2|]} [2020-07-21 16:20:17,772 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:20:17,774 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,809 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:17,825 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:17,827 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2020-07-21 16:20:17,828 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,858 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:17,875 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:17,875 INFO L384 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 15 [2020-07-21 16:20:17,877 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,898 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:17,900 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:20:17,900 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:61, output treesize:23 [2020-07-21 16:20:18,115 INFO L440 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_BEFORE_CALL_3|, |v_#memory_$Pointer$.base_BEFORE_CALL_3|], 12=[|v_#memory_int_BEFORE_CALL_5|]} [2020-07-21 16:20:18,122 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 34 [2020-07-21 16:20:18,124 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,172 INFO L624 ElimStorePlain]: treesize reduction 4, result has 94.2 percent of original size [2020-07-21 16:20:18,179 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:18,180 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 22 [2020-07-21 16:20:18,181 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,193 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:18,228 INFO L350 Elim1Store]: treesize reduction 16, result has 50.0 percent of original size [2020-07-21 16:20:18,229 INFO L384 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 2 case distinctions, treesize of input 30 treesize of output 29 [2020-07-21 16:20:18,230 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,243 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:18,244 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,244 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:91, output treesize:28 [2020-07-21 16:20:18,289 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2020-07-21 16:20:18,290 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,317 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-21 16:20:18,318 INFO L544 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-21 16:20:18,319 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:7 [2020-07-21 16:20:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:20:18,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:20:18,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1578529184] [2020-07-21 16:20:18,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:20:18,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-21 16:20:18,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546903892] [2020-07-21 16:20:18,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 16:20:18,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:20:18,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 16:20:18,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:20:18,378 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 12 states. [2020-07-21 16:20:18,663 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-07-21 16:20:18,812 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-07-21 16:20:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:20:18,959 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-21 16:20:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 16:20:18,962 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2020-07-21 16:20:18,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:20:18,970 INFO L225 Difference]: With dead ends: 27 [2020-07-21 16:20:18,970 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:20:18,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-21 16:20:18,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:20:19,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:20:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:20:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:20:19,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-21 16:20:19,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:20:19,006 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:20:19,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 16:20:19,006 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:20:19,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:20:19,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:20:19,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:20:19,703 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2020-07-21 16:20:19,918 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-07-21 16:20:20,042 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:20:20,043 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:20:20,043 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:20:20,043 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:20:20,043 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse1 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (and (= 0 |~#b~0.offset|) (< |#StackHeapBarrier| |~#a~0.base|) (= 0 |~#a~0.offset|) (< 0 |#StackHeapBarrier|) (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|) (= 0 (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= 1 (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|)) (= |~#global~0.offset| 0) (= |~#a~0.base| (select .cse1 |~#global~0.offset|)) (= |~#b~0.base| (select .cse1 .cse2)) (= (select .cse0 .cse2) |~#b~0.offset|))) [2020-07-21 16:20:20,043 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:20:20,044 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:20:20,044 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2020-07-21 16:20:20,044 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 33) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.offset|)) (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#b~0.base| (select .cse0 .cse2))) (not (= 0 |~#a~0.offset|)) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,044 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2020-07-21 16:20:20,045 INFO L264 CegarLoopResult]: At program point L26(lines 20 33) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= 0 |~#global~0.offset|)) (not (= 0 |~#b~0.offset|)) (not (= (select .cse0 .cse1) |~#b~0.offset|)) (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= 0 |~#a~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (not (= (select .cse2 .cse1) |~#b~0.base|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,045 INFO L268 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-07-21 16:20:20,045 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2020-07-21 16:20:20,045 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.offset|)) (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#b~0.base| (select .cse0 .cse2))) (let ((.cse3 (select |#memory_$Pointer$.base| main_~pd~0.base)) (.cse4 (select |#memory_$Pointer$.offset| main_~pd~0.base))) (and (= 0 main_~pd~0.offset) (= (select .cse3 0) |~#a~0.base|) (= |~#a~0.offset| (select .cse4 0)) (= |~#b~0.base| (select .cse3 4)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |~#b~0.offset| (select .cse4 4)))) (not (= 0 |~#a~0.offset|)) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,046 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-21 16:20:20,046 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.offset|)) (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#b~0.base| (select .cse0 .cse2))) (not (= 0 |~#a~0.offset|)) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (and (= |assign2_#t~mem1.base| (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pb.base|) |assign2_#in~pb.offset|) |assign2_#t~mem2.offset|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pb.base|) |assign2_#in~pb.offset|) |assign2_#t~mem2.base|) (= (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|) |assign2_#t~mem1.offset|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,046 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-07-21 16:20:20,046 INFO L268 CegarLoopResult]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2020-07-21 16:20:20,047 INFO L264 CegarLoopResult]: At program point assign2ENTRY(lines 14 17) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.offset|)) (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#b~0.base| (select .cse0 .cse2))) (not (= 0 |~#a~0.offset|)) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,047 INFO L268 CegarLoopResult]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2020-07-21 16:20:20,047 INFO L268 CegarLoopResult]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2020-07-21 16:20:20,047 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 9 12) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (< |#StackHeapBarrier| |~#a~0.base|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.offset|)) (not (= 1 (select (select |old(#memory_int)| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#b~0.base| (select .cse0 .cse2))) (not (= 0 |~#a~0.offset|)) (not (= 0 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (not (< 0 |#StackHeapBarrier|)))) [2020-07-21 16:20:20,048 INFO L268 CegarLoopResult]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2020-07-21 16:20:20,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,064 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,065 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,067 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,067 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,073 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,073 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:20:20 BoogieIcfgContainer [2020-07-21 16:20:20,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:20:20,082 INFO L168 Benchmark]: Toolchain (without parser) took 3786.51 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 104.4 MB in the beginning and 119.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,083 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.61 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 94.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,085 INFO L168 Benchmark]: Boogie Preprocessor took 123.58 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 94.0 MB in the beginning and 182.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,086 INFO L168 Benchmark]: RCFGBuilder took 404.89 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 165.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,087 INFO L168 Benchmark]: TraceAbstraction took 2999.40 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 164.9 MB in the beginning and 119.2 MB in the end (delta: 45.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 7.1 GB. [2020-07-21 16:20:20,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.61 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 94.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.58 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 94.0 MB in the beginning and 182.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 404.89 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 165.6 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2999.40 ms. Allocated memory was 203.9 MB in the beginning and 246.4 MB in the end (delta: 42.5 MB). Free memory was 164.9 MB in the beginning and 119.2 MB in the end (delta: 45.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant [2020-07-21 16:20:20,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,109 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,110 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-21 16:20:20,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-21 16:20:20,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-07-21 16:20:20,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-21 16:20:20,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-21 16:20:20,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: (((((((((!(1 == \old(unknown-#memory_int-unknown)[a][a]) || !(0 == global)) || !(0 == b)) || !(\old(#memory_$Pointer$)[global][global + 4] == b)) || !(unknown-#StackHeapBarrier-unknown < a)) || !(0 == a)) || !(\old(#memory_$Pointer$)[global][global] == a)) || !(a == \old(#memory_$Pointer$)[global][global])) || !(0 == \old(unknown-#memory_int-unknown)[b][b])) || !(\old(#memory_$Pointer$)[global][global + 4] == b)) || !(0 < unknown-#StackHeapBarrier-unknown) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 11 SDslu, 54 SDs, 0 SdLazy, 110 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 611 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 305 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 10608 SizeOfPredicates, 27 NumberOfNonLiveVariables, 155 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...