/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:20:38,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:20:38,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:20:38,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:20:38,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:20:38,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:20:38,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:20:38,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:20:38,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:20:38,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:20:38,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:20:38,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:20:38,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:20:38,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:20:38,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:20:38,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:20:38,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:20:38,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:20:38,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:20:38,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:20:38,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:20:38,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:20:38,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:20:38,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:20:38,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:20:38,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:20:38,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:20:38,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:20:38,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:20:38,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:20:38,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:20:38,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:20:38,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:20:38,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:20:38,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:20:38,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:20:38,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:20:38,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:20:38,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:20:38,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:20:38,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:20:38,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:20:38,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:20:38,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:20:38,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:20:38,175 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:20:38,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:20:38,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:20:38,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:20:38,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:20:38,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:20:38,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:20:38,177 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:20:38,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:20:38,178 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:20:38,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:20:38,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:20:38,178 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:20:38,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:20:38,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:20:38,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:20:38,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:20:38,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:20:38,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:20:38,180 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:20:38,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:20:38,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:20:38,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:20:38,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:20:38,472 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:20:38,472 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-07-18 00:20:38,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cc91ce/b133f19890fa4ad28da59ecfe752ce66/FLAGad39710c2 [2020-07-18 00:20:38,990 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:20:38,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-2.i [2020-07-18 00:20:38,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cc91ce/b133f19890fa4ad28da59ecfe752ce66/FLAGad39710c2 [2020-07-18 00:20:39,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cc91ce/b133f19890fa4ad28da59ecfe752ce66 [2020-07-18 00:20:39,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:20:39,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:20:39,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:20:39,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:20:39,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:20:39,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c210f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39, skipping insertion in model container [2020-07-18 00:20:39,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:20:39,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:20:39,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:20:39,605 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:20:39,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:20:39,643 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:20:39,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39 WrapperNode [2020-07-18 00:20:39,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:20:39,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:20:39,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:20:39,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:20:39,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... [2020-07-18 00:20:39,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:20:39,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:20:39,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:20:39,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:20:39,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:20:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:20:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:20:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:20:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:20:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:20:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:20:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:20:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:20:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:20:40,164 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:20:40,165 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:20:40,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:20:40 BoogieIcfgContainer [2020-07-18 00:20:40,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:20:40,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:20:40,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:20:40,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:20:40,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:20:39" (1/3) ... [2020-07-18 00:20:40,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f70c002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:20:40, skipping insertion in model container [2020-07-18 00:20:40,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:20:39" (2/3) ... [2020-07-18 00:20:40,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f70c002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:20:40, skipping insertion in model container [2020-07-18 00:20:40,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:20:40" (3/3) ... [2020-07-18 00:20:40,181 INFO L109 eAbstractionObserver]: Analyzing ICFG nested_structure-2.i [2020-07-18 00:20:40,194 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:20:40,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:20:40,219 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:20:40,244 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:20:40,244 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:20:40,244 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:20:40,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:20:40,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:20:40,245 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:20:40,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:20:40,245 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:20:40,275 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-07-18 00:20:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-18 00:20:40,296 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:20:40,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:20:40,297 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:20:40,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:20:40,305 INFO L82 PathProgramCache]: Analyzing trace with hash 42045937, now seen corresponding path program 1 times [2020-07-18 00:20:40,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:20:40,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429392763] [2020-07-18 00:20:40,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:20:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:20:41,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {47#true} is VALID [2020-07-18 00:20:41,307 INFO L280 TraceCheckUtils]: 1: Hoare triple {47#true} #valid := #valid[0 := 0]; {47#true} is VALID [2020-07-18 00:20:41,308 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#true} assume 0 < #StackHeapBarrier; {47#true} is VALID [2020-07-18 00:20:41,308 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#true} assume true; {47#true} is VALID [2020-07-18 00:20:41,309 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {47#true} {47#true} #49#return; {47#true} is VALID [2020-07-18 00:20:41,312 INFO L263 TraceCheckUtils]: 0: Hoare triple {47#true} call ULTIMATE.init(); {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:20:41,312 INFO L280 TraceCheckUtils]: 1: Hoare triple {69#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {47#true} is VALID [2020-07-18 00:20:41,313 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#true} #valid := #valid[0 := 0]; {47#true} is VALID [2020-07-18 00:20:41,313 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#true} assume 0 < #StackHeapBarrier; {47#true} is VALID [2020-07-18 00:20:41,314 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#true} assume true; {47#true} is VALID [2020-07-18 00:20:41,314 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {47#true} {47#true} #49#return; {47#true} is VALID [2020-07-18 00:20:41,316 INFO L263 TraceCheckUtils]: 6: Hoare triple {47#true} call #t~ret5 := main(); {47#true} is VALID [2020-07-18 00:20:41,318 INFO L280 TraceCheckUtils]: 7: Hoare triple {47#true} SUMMARY for call ~#im~0.base, ~#im~0.offset := #Ultimate.allocOnStack(4); srcloc: mainENTRY {54#(and (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|))} is VALID [2020-07-18 00:20:41,320 INFO L280 TraceCheckUtils]: 8: Hoare triple {54#(and (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|))} SUMMARY for call write~init~int(3, ~#im~0.base, ~#im~0.offset, 4); srcloc: L29 {55#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 1 (select |#valid| |main_~#im~0.base|)))} is VALID [2020-07-18 00:20:41,321 INFO L280 TraceCheckUtils]: 9: Hoare triple {55#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 1 (select |#valid| |main_~#im~0.base|)))} SUMMARY for call ~#inner~0.base, ~#inner~0.offset := #Ultimate.allocOnStack(8); srcloc: L29-1 {56#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} is VALID [2020-07-18 00:20:41,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {56#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} SUMMARY for call write~init~int(2, ~#inner~0.base, ~#inner~0.offset, 4); srcloc: L30 {56#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} is VALID [2020-07-18 00:20:41,324 INFO L280 TraceCheckUtils]: 11: Hoare triple {56#(and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} SUMMARY for call write~init~$Pointer$(~#im~0.base, ~#im~0.offset, ~#inner~0.base, 4 + ~#inner~0.offset, 4); srcloc: L30-1 {57#(and (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= 3 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) 0)) (= 0 |main_~#inner~0.offset|))} is VALID [2020-07-18 00:20:41,325 INFO L280 TraceCheckUtils]: 12: Hoare triple {57#(and (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= 3 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) 0)) (= 0 |main_~#inner~0.offset|))} SUMMARY for call ~#good~0.base, ~#good~0.offset := #Ultimate.allocOnStack(8); srcloc: L30-2 {58#(and (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) |main_~#good~0.offset|) 3) (= 0 |main_~#inner~0.offset|))} is VALID [2020-07-18 00:20:41,327 INFO L280 TraceCheckUtils]: 13: Hoare triple {58#(and (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) |main_~#good~0.offset|) 3) (= 0 |main_~#inner~0.offset|))} SUMMARY for call write~init~int(1, ~#good~0.base, ~#good~0.offset, 4); srcloc: L31 {59#(and (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} is VALID [2020-07-18 00:20:41,328 INFO L280 TraceCheckUtils]: 14: Hoare triple {59#(and (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (not (= (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)) |main_~#inner~0.base|)) (= 0 |main_~#inner~0.offset|))} SUMMARY for call write~init~$Pointer$(~#inner~0.base, ~#inner~0.offset, ~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L31-1 {60#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4) (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))))} is VALID [2020-07-18 00:20:41,330 INFO L280 TraceCheckUtils]: 15: Hoare triple {60#(and (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4) (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))))} SUMMARY for call #t~mem0.base, #t~mem0.offset := read~$Pointer$(~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L31-2 {61#(and (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| |main_#t~mem0.base|) (+ |main_#t~mem0.offset| 4)))) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (select |#memory_$Pointer$.base| |main_#t~mem0.base|)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem0.base|) (+ |main_#t~mem0.offset| 4)) (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 0 |main_#t~mem0.offset|))} is VALID [2020-07-18 00:20:41,331 INFO L280 TraceCheckUtils]: 16: Hoare triple {61#(and (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| (select (select |#memory_$Pointer$.base| |main_#t~mem0.base|) (+ |main_#t~mem0.offset| 4)))) (= (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (select |#memory_$Pointer$.base| |main_#t~mem0.base|)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem0.base|) (+ |main_#t~mem0.offset| 4)) (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 0 |main_#t~mem0.offset|))} SUMMARY for call #t~mem1.base, #t~mem1.offset := read~$Pointer$(#t~mem0.base, 4 + #t~mem0.offset, 4); srcloc: L32 {62#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4) |main_#t~mem1.offset|) (not (= |main_#t~mem1.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= |main_#t~mem1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)))} is VALID [2020-07-18 00:20:41,333 INFO L280 TraceCheckUtils]: 17: Hoare triple {62#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4) |main_#t~mem1.offset|) (not (= |main_#t~mem1.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)))) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= |main_#t~mem1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)))} SUMMARY for call write~int(4, #t~mem1.base, #t~mem1.offset, 4); srcloc: L32-1 {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} is VALID [2020-07-18 00:20:41,334 INFO L280 TraceCheckUtils]: 18: Hoare triple {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} havoc #t~mem0.base, #t~mem0.offset; {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} is VALID [2020-07-18 00:20:41,336 INFO L280 TraceCheckUtils]: 19: Hoare triple {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} havoc #t~mem1.base, #t~mem1.offset; {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} is VALID [2020-07-18 00:20:41,337 INFO L280 TraceCheckUtils]: 20: Hoare triple {63#(and (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4)) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4))) 4))))} SUMMARY for call #t~mem2.base, #t~mem2.offset := read~$Pointer$(~#good~0.base, 4 + ~#good~0.offset, 4); srcloc: L33 {64#(and (= 0 |main_#t~mem2.offset|) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) (+ |main_#t~mem2.offset| 4))) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) (+ |main_#t~mem2.offset| 4)))))} is VALID [2020-07-18 00:20:41,338 INFO L280 TraceCheckUtils]: 21: Hoare triple {64#(and (= 0 |main_#t~mem2.offset|) (= 4 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) (+ |main_#t~mem2.offset| 4))) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) (+ |main_#t~mem2.offset| 4)))))} SUMMARY for call #t~mem3.base, #t~mem3.offset := read~$Pointer$(#t~mem2.base, 4 + #t~mem2.offset, 4); srcloc: L33-1 {65#(= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|))} is VALID [2020-07-18 00:20:41,339 INFO L280 TraceCheckUtils]: 22: Hoare triple {65#(= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|))} SUMMARY for call #t~mem4 := read~int(#t~mem3.base, #t~mem3.offset, 4); srcloc: L33-2 {66#(= 4 |main_#t~mem4|)} is VALID [2020-07-18 00:20:41,341 INFO L263 TraceCheckUtils]: 23: Hoare triple {66#(= 4 |main_#t~mem4|)} call __VERIFIER_assert((if 4 == #t~mem4 then 1 else 0)); {67#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-18 00:20:41,342 INFO L280 TraceCheckUtils]: 24: Hoare triple {67#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {68#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 00:20:41,343 INFO L280 TraceCheckUtils]: 25: Hoare triple {68#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {48#false} is VALID [2020-07-18 00:20:41,343 INFO L280 TraceCheckUtils]: 26: Hoare triple {48#false} assume !false; {48#false} is VALID [2020-07-18 00:20:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:20:41,353 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:20:41,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1429392763] [2020-07-18 00:20:41,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:20:41,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-07-18 00:20:41,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265042194] [2020-07-18 00:20:41,365 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2020-07-18 00:20:41,368 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:20:41,372 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states. [2020-07-18 00:20:41,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:41,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-18 00:20:41,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:20:41,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-18 00:20:41,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-07-18 00:20:41,433 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 18 states. [2020-07-18 00:20:43,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:43,925 INFO L93 Difference]: Finished difference Result 60 states and 59 transitions. [2020-07-18 00:20:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-18 00:20:43,925 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 27 [2020-07-18 00:20:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:20:43,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-18 00:20:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 59 transitions. [2020-07-18 00:20:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-18 00:20:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 59 transitions. [2020-07-18 00:20:43,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 59 transitions. [2020-07-18 00:20:44,073 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:44,079 INFO L225 Difference]: With dead ends: 60 [2020-07-18 00:20:44,080 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 00:20:44,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=1059, Unknown=0, NotChecked=0, Total=1260 [2020-07-18 00:20:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 00:20:44,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 00:20:44,103 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:20:44,104 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 00:20:44,104 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:20:44,104 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:20:44,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:44,105 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:20:44,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:20:44,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:44,105 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:44,106 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:20:44,106 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:20:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:20:44,106 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:20:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:20:44,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:44,107 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:20:44,107 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:20:44,107 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:20:44,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 00:20:44,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 00:20:44,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-07-18 00:20:44,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:20:44,109 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 00:20:44,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-18 00:20:44,110 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 00:20:44,110 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:20:44,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:20:44,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:20:44,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:20:44,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 00:20:44,916 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,917 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,917 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,917 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-18 00:20:44,917 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,917 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,917 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,918 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,918 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:20:44,918 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,918 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (= 0 |main_#t~mem2.offset|) (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (let ((.cse3 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse3)))) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,919 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse1 (select |#memory_int| .cse0))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 1 (select |#valid| |main_~#im~0.base|)) (= (select .cse1 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (= 3 (select .cse1 0)) (= 0 |main_~#inner~0.offset|)))) [2020-07-18 00:20:44,919 INFO L264 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (= 0 |main_#t~mem2.offset|) (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (let ((.cse3 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse3)))) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,920 INFO L264 CegarLoopResult]: At program point L31-1(line 31) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (let ((.cse1 (select |#memory_int| .cse0))) (and (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 1 (select |#valid| |main_~#im~0.base|)) (= (select .cse1 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (= 3 (select .cse1 0)) (= 0 |main_~#inner~0.offset|)))) [2020-07-18 00:20:44,920 INFO L264 CegarLoopResult]: At program point L33-3(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (= 0 |main_#t~mem2.offset|) (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (let ((.cse3 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse3)))) (= 4 |main_#t~mem4|) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,920 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|)) [2020-07-18 00:20:44,920 INFO L264 CegarLoopResult]: At program point L31-2(line 31) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse2 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select (select |#memory_$Pointer$.base| .cse2) 4)) (.cse4 (select |#memory_int| .cse0))) (and (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= .cse1 .cse2)) (not (= |main_~#good~0.base| .cse1)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3)) (= (select .cse4 |main_~#good~0.offset|) 3) (= 0 |main_~#im~0.offset|) (= 3 (select .cse4 0)) (= 0 |main_~#inner~0.offset|))))) [2020-07-18 00:20:44,921 INFO L264 CegarLoopResult]: At program point L33-4(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (= 0 |main_#t~mem2.offset|) (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (let ((.cse3 (+ |main_#t~mem2.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem2.base|) .cse3)) (select (select |#memory_$Pointer$.offset| |main_#t~mem2.base|) .cse3)))) (= 4 |main_#t~mem4|) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,921 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|)) [2020-07-18 00:20:44,921 INFO L264 CegarLoopResult]: At program point L33-5(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 |main_#t~mem4|) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| |main_#t~mem3.base|) |main_#t~mem3.offset|)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,921 INFO L264 CegarLoopResult]: At program point L31-3(line 31) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,921 INFO L264 CegarLoopResult]: At program point L33-6(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 |main_#t~mem4|) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,922 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,922 INFO L264 CegarLoopResult]: At program point L31-4(line 31) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,922 INFO L264 CegarLoopResult]: At program point L29-3(line 29) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,922 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 27 35) the Hoare annotation is: true [2020-07-18 00:20:44,922 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 27 35) the Hoare annotation is: true [2020-07-18 00:20:44,923 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,923 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse3 (+ |main_~#good~0.offset| 4)) (.cse2 (select |#memory_$Pointer$.base| |main_#t~mem0.base|))) (let ((.cse5 (select .cse2 (+ |main_#t~mem0.offset| 4))) (.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3)) (.cse4 (select |#memory_int| .cse0))) (and (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) (select |#memory_$Pointer$.offset| .cse1)) (= (select |#memory_$Pointer$.base| .cse1) .cse2) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3)) (= 0 |main_#t~mem0.offset|) (= 0 |main_~#im~0.offset|) (= 3 (select .cse4 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#good~0.base| .cse5)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= .cse5 .cse1)) (= 1 (select |#valid| |main_~#im~0.base|)) (= (select .cse4 |main_~#good~0.offset|) 3) (= 0 |main_~#inner~0.offset|)))) [2020-07-18 00:20:44,923 INFO L264 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse5 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse1 (select |#memory_$Pointer$.offset| .cse5)) (.cse2 (select |#memory_$Pointer$.base| .cse5)) (.cse4 (select |#memory_int| .cse0))) (and (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (= (select .cse1 4) |main_#t~mem1.offset|) (= (select |#memory_$Pointer$.offset| |main_#t~mem0.base|) .cse1) (= .cse2 (select |#memory_$Pointer$.base| |main_#t~mem0.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3)) (= |main_#t~mem1.base| (select .cse2 4)) (= 0 |main_#t~mem0.offset|) (= 0 |main_~#im~0.offset|) (= 3 (select .cse4 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (not (= |main_#t~mem1.base| .cse5)) (= 1 (select |#valid| |main_~#im~0.base|)) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= (select .cse4 |main_~#good~0.offset|) 3) (= 0 |main_~#inner~0.offset|))))) [2020-07-18 00:20:44,923 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|) (= 0 |main_~#inner~0.offset|)) [2020-07-18 00:20:44,924 INFO L264 CegarLoopResult]: At program point L32-2(line 32) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse3 (select (select |#memory_$Pointer$.base| .cse1) 4)) (.cse0 (select (select |#memory_$Pointer$.offset| .cse1) 4))) (and (= .cse0 |main_#t~mem1.offset|) (not (= |main_#t~mem1.base| .cse1)) (= 1 (select |#valid| |main_~#im~0.base|)) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= |main_#t~mem1.base| .cse3) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse3) .cse0)))))) [2020-07-18 00:20:44,924 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 27 35) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-18 00:20:44,924 INFO L264 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|) (= 0 |main_~#inner~0.offset|)) [2020-07-18 00:20:44,924 INFO L264 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse3 (select (select |#memory_$Pointer$.base| .cse1) 4)) (.cse0 (select (select |#memory_$Pointer$.offset| .cse1) 4))) (and (= .cse0 |main_#t~mem1.offset|) (not (= |main_#t~mem1.base| .cse1)) (= 1 (select |#valid| |main_~#im~0.base|)) (not (= |main_~#good~0.base| |main_#t~mem1.base|)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= |main_#t~mem1.base| .cse3) (= 0 |main_~#im~0.offset|) (= 4 (select (select |#memory_int| .cse3) .cse0)))))) [2020-07-18 00:20:44,924 INFO L264 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 3 (select (select |#memory_int| |main_~#im~0.base|) 0)) (not (= .cse0 |main_~#inner~0.base|)) (not (= |main_~#im~0.base| |main_~#inner~0.base|)) (= 1 (select |#valid| |main_~#im~0.base|)) (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| .cse0) 0)) (= 0 |main_~#inner~0.offset|))) [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point L30-3(line 30) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point L30-4(line 30) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (not (= |main_~#good~0.base| .cse0)) (= 0 (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2)) (= 4 (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4))))))) [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point L3-2(lines 2 7) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 00:20:44,925 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 2 7) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 00:20:44,925 INFO L264 CegarLoopResult]: At program point L3(lines 3 5) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 00:20:44,926 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 00:20:44,955 INFO L163 areAnnotationChecker]: CFG has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:20:44,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:20:44 BoogieIcfgContainer [2020-07-18 00:20:44,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:20:44,970 INFO L168 Benchmark]: Toolchain (without parser) took 5592.67 ms. Allocated memory was 138.4 MB in the beginning and 282.1 MB in the end (delta: 143.7 MB). Free memory was 102.7 MB in the beginning and 218.9 MB in the end (delta: -116.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:44,971 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 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. [2020-07-18 00:20:44,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.70 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:44,973 INFO L168 Benchmark]: Boogie Preprocessor took 144.75 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.7 MB in the beginning and 181.0 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:44,974 INFO L168 Benchmark]: RCFGBuilder took 381.07 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 155.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:44,975 INFO L168 Benchmark]: TraceAbstraction took 4794.84 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 155.9 MB in the beginning and 218.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:20:44,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 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 264.70 ms. Allocated memory is still 138.4 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.75 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 91.7 MB in the beginning and 181.0 MB in the end (delta: -89.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 381.07 ms. Allocated memory is still 202.9 MB. Free memory was 180.4 MB in the beginning and 155.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4794.84 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 155.9 MB in the beginning and 218.9 MB in the end (delta: -63.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 2]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 80 SDslu, 233 SDs, 0 SdLazy, 280 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 44 LocationsWithAnnotation, 44 PreInvPairs, 60 NumberOfFragments, 2055 HoareAnnotationTreeSize, 44 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...