/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 NOT_INCREMENTALLY -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 [2020-07-20 11:30:34,448 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 11:30:34,498 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 [2020-07-20 11:30:34,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 11:30:34,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 11:30:34,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 11:30:34,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 11:30:34,515 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 11:30:34,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 11:30:34,515 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 11:30:34,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 11:30:34,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 11:30:34,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 11:30:34,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 11:30:34,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 11:30:34,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 11:30:34,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 11:30:34,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 11:30:34,517 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 11:30:34,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 11:30:34,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 11:30:34,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 11:30:34,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 11:30:34,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 11:30:34,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 11:30:34,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 11:30:34,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 11:30:34,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 11:30:34,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 11:30:34,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:30:34,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 11:30:34,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 11:30:34,522 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 -> NOT_INCREMENTALLY [2020-07-20 11:30:34,827 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 11:30:34,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 11:30:34,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 11:30:34,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 11:30:34,847 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 11:30:34,848 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2020-07-20 11:30:34,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14364d2f/fb0be0f9ef5648ccaa65937a62b919af/FLAG45b15caf6 [2020-07-20 11:30:35,439 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 11:30:35,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test30-1.c [2020-07-20 11:30:35,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14364d2f/fb0be0f9ef5648ccaa65937a62b919af/FLAG45b15caf6 [2020-07-20 11:30:35,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e14364d2f/fb0be0f9ef5648ccaa65937a62b919af [2020-07-20 11:30:35,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 11:30:35,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 11:30:35,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 11:30:35,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 11:30:35,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 11:30:35,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:30:35" (1/1) ... [2020-07-20 11:30:35,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ba0353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:35, skipping insertion in model container [2020-07-20 11:30:35,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:30:35" (1/1) ... [2020-07-20 11:30:35,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 11:30:35,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 11:30:36,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:30:36,016 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 11:30:36,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 11:30:36,049 INFO L208 MainTranslator]: Completed translation [2020-07-20 11:30:36,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36 WrapperNode [2020-07-20 11:30:36,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 11:30:36,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 11:30:36,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 11:30:36,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 11:30:36,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (1/1) ... [2020-07-20 11:30:36,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 11:30:36,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 11:30:36,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 11:30:36,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 11:30:36,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (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 [2020-07-20 11:30:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 11:30:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 11:30:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-07-20 11:30:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-07-20 11:30:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 11:30:36,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 11:30:36,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 11:30:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 11:30:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 11:30:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 11:30:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-20 11:30:36,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 11:30:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 11:30:36,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 11:30:36,520 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 11:30:36,520 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 11:30:36,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:30:36 BoogieIcfgContainer [2020-07-20 11:30:36,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 11:30:36,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 11:30:36,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 11:30:36,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 11:30:36,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:30:35" (1/3) ... [2020-07-20 11:30:36,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293bd9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:30:36, skipping insertion in model container [2020-07-20 11:30:36,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:30:36" (2/3) ... [2020-07-20 11:30:36,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293bd9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:30:36, skipping insertion in model container [2020-07-20 11:30:36,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:30:36" (3/3) ... [2020-07-20 11:30:36,542 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-1.c [2020-07-20 11:30:36,553 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 11:30:36,560 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 11:30:36,574 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 11:30:36,597 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 11:30:36,598 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 11:30:36,598 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 11:30:36,598 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 11:30:36,598 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 11:30:36,598 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 11:30:36,599 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 11:30:36,599 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 11:30:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-20 11:30:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-20 11:30:36,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 11:30:36,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 11:30:36,623 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 11:30:36,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 11:30:36,628 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2020-07-20 11:30:36,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 11:30:36,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594664861] [2020-07-20 11:30:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-07-20 11:30:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 11:30:36,798 WARN L261 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 85 conjunts are in the unsatisfiable core [2020-07-20 11:30:36,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 11:30:36,920 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2020-07-20 11:30:36,922 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2020-07-20 11:30:36,997 INFO L624 ElimStorePlain]: treesize reduction 14, result has 80.3 percent of original size [2020-07-20 11:30:36,998 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:30:36,998 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:57 [2020-07-20 11:30:37,142 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|]} [2020-07-20 11:30:37,157 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 [2020-07-20 11:30:37,158 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,187 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,203 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,203 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 [2020-07-20 11:30:37,205 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,221 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,228 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 [2020-07-20 11:30:37,229 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,240 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,241 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,242 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:59, output treesize:17 [2020-07-20 11:30:37,390 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|]} [2020-07-20 11:30:37,397 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 [2020-07-20 11:30:37,399 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,418 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,425 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,426 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 [2020-07-20 11:30:37,427 INFO L544 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,439 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,448 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 30 treesize of output 21 [2020-07-20 11:30:37,449 INFO L544 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,473 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,474 INFO L544 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,475 INFO L244 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:85, output treesize:22 [2020-07-20 11:30:37,511 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 [2020-07-20 11:30:37,512 INFO L544 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,519 INFO L624 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-07-20 11:30:37,520 INFO L544 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-07-20 11:30:37,520 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:33, output treesize:7 [2020-07-20 11:30:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 11:30:37,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 11:30:37,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594664861] [2020-07-20 11:30:37,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 11:30:37,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-20 11:30:37,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206291775] [2020-07-20 11:30:37,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 11:30:37,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 11:30:37,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 11:30:37,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-20 11:30:37,572 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-07-20 11:30:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 11:30:37,929 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-07-20 11:30:37,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 11:30:37,932 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-07-20 11:30:37,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 11:30:37,941 INFO L225 Difference]: With dead ends: 27 [2020-07-20 11:30:37,941 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 11:30:37,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-07-20 11:30:37,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 11:30:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 11:30:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 11:30:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 11:30:37,974 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-20 11:30:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 11:30:37,974 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 11:30:37,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 11:30:37,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 11:30:37,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 11:30:38,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 11:30:38,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 11:30:38,647 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2020-07-20 11:30:38,757 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2020-07-20 11:30:38,782 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:30:38,782 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:30:38,783 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:30:38,783 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 11:30:38,783 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|) (not (= |~#b~0.base| |~#a~0.base|)) (= (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|))) [2020-07-20 11:30:38,783 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 11:30:38,784 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 11:30:38,784 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2020-07-20 11:30:38,786 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 (= |~#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 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (= |~#b~0.base| |~#a~0.base|) (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|)))) [2020-07-20 11:30:38,786 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2020-07-20 11:30:38,786 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|)) (= |~#a~0.base| |~#b~0.base|) (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|)))) [2020-07-20 11:30:38,787 INFO L268 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-07-20 11:30:38,787 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2020-07-20 11:30:38,789 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 (= |~#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 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (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)))) (= |~#b~0.base| |~#a~0.base|) (not (= 0 |~#b~0.offset|)) (not (= (select .cse1 .cse2) |~#b~0.offset|)))) [2020-07-20 11:30:38,789 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-07-20 11:30:38,789 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 (= |~#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 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (= |~#b~0.base| |~#a~0.base|) (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)|)))) [2020-07-20 11:30:38,790 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-07-20 11:30:38,790 INFO L268 CegarLoopResult]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2020-07-20 11:30:38,791 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 (= |~#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 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (= |~#b~0.base| |~#a~0.base|) (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|)))) [2020-07-20 11:30:38,791 INFO L268 CegarLoopResult]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2020-07-20 11:30:38,791 INFO L268 CegarLoopResult]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2020-07-20 11:30:38,791 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 (= |~#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 (select (select |old(#memory_int)| |~#b~0.base|) |~#b~0.offset|))) (= |~#b~0.base| |~#a~0.base|) (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|)))) [2020-07-20 11:30:38,792 INFO L268 CegarLoopResult]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2020-07-20 11:30:38,817 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,819 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,819 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,821 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,823 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,824 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,825 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,829 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,830 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,830 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,830 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,830 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,831 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,832 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:30:38 BoogieIcfgContainer [2020-07-20 11:30:38,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 11:30:38,840 INFO L168 Benchmark]: Toolchain (without parser) took 3046.67 ms. Allocated memory was 137.4 MB in the beginning and 251.1 MB in the end (delta: 113.8 MB). Free memory was 101.7 MB in the beginning and 204.9 MB in the end (delta: -103.1 MB). Peak memory consumption was 116.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,842 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.42 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,843 INFO L168 Benchmark]: Boogie Preprocessor took 114.84 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.8 MB in the beginning and 179.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,844 INFO L168 Benchmark]: RCFGBuilder took 360.13 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 162.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,845 INFO L168 Benchmark]: TraceAbstraction took 2304.25 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 162.3 MB in the beginning and 204.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2020-07-20 11:30:38,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.42 ms. Allocated memory is still 137.4 MB. Free memory was 101.3 MB in the beginning and 90.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.84 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 90.8 MB in the beginning and 179.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 360.13 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 162.9 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2304.25 ms. Allocated memory was 201.3 MB in the beginning and 251.1 MB in the end (delta: 49.8 MB). Free memory was 162.3 MB in the beginning and 204.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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 #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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - 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_$Pointer$ * 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 [2020-07-20 11:30:38,859 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,860 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,861 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-20 11:30:38,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-20 11:30:38,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-20 11:30:38,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-20 11:30:38,865 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((((!(1 == \old(unknown-#memory_int-unknown)[a][a]) || !(0 == global)) || !(0 == b)) || !(\old(#memory_$Pointer$)[global][global + 4] == b)) || a == b) || !(\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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 9 SDslu, 48 SDs, 0 SdLazy, 104 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s 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, 552 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 280 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 9418 SizeOfPredicates, 28 NumberOfNonLiveVariables, 155 ConjunctsInSsa, 85 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...