/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test29-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:07:07,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:07:07,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:07:07,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:07:07,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:07:07,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:07:07,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:07:07,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:07:07,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:07:07,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:07:07,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:07:07,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:07:07,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:07:07,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:07:07,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:07:07,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:07:07,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:07:07,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:07:07,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:07:07,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:07:07,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:07:07,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:07:07,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:07:07,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:07:07,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:07:07,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:07:07,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:07:07,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:07:07,808 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 [2020-07-10 15:07:07,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:07:07,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:07:07,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:07:07,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:07:07,824 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:07:07,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:07:07,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:07:07,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:07:07,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:07:07,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:07:07,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:07:07,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:07:07,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:07:07,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:07:07,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:07:07,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:07:07,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:07:07,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:07:07,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:07:07,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:07:07,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:07:07,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:07:07,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:07:07,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:07:07,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:07:08,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:07:08,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:07:08,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:07:08,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:07:08,132 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:07:08,133 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-1.c [2020-07-10 15:07:08,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f06819c23/07c55a7a81cf420388d595e836c78835/FLAG4a2deff38 [2020-07-10 15:07:08,663 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:07:08,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test29-1.c [2020-07-10 15:07:08,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f06819c23/07c55a7a81cf420388d595e836c78835/FLAG4a2deff38 [2020-07-10 15:07:09,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f06819c23/07c55a7a81cf420388d595e836c78835 [2020-07-10 15:07:09,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:07:09,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:07:09,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:07:09,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:07:09,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:07:09,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733519c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09, skipping insertion in model container [2020-07-10 15:07:09,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:07:09,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:07:09,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:07:09,280 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:07:09,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:07:09,315 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:07:09,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09 WrapperNode [2020-07-10 15:07:09,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:07:09,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:07:09,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:07:09,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:07:09,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (1/1) ... [2020-07-10 15:07:09,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:07:09,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:07:09,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:07:09,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:07:09,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (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 [2020-07-10 15:07:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:07:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:07:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:07:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:07:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:07:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:07:09,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:07:09,775 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:07:09,776 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 15:07:09,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:07:09 BoogieIcfgContainer [2020-07-10 15:07:09,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:07:09,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:07:09,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:07:09,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:07:09,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:07:09" (1/3) ... [2020-07-10 15:07:09,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b174763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:07:09, skipping insertion in model container [2020-07-10 15:07:09,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:09" (2/3) ... [2020-07-10 15:07:09,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b174763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:07:09, skipping insertion in model container [2020-07-10 15:07:09,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:07:09" (3/3) ... [2020-07-10 15:07:09,788 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-1.c [2020-07-10 15:07:09,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:07:09,836 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:07:09,870 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:07:09,902 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:07:09,902 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:07:09,902 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:07:09,902 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:07:09,902 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:07:09,903 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:07:09,903 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:07:09,903 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:07:09,918 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-10 15:07:09,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:07:09,923 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:09,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:09,925 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:09,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:09,930 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2020-07-10 15:07:09,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:09,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990167038] [2020-07-10 15:07:09,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:10,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#true} is VALID [2020-07-10 15:07:10,204 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-10 15:07:10,205 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #35#return; {21#true} is VALID [2020-07-10 15:07:10,213 INFO L263 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {28#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:07:10,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#true} is VALID [2020-07-10 15:07:10,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-10 15:07:10,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #35#return; {21#true} is VALID [2020-07-10 15:07:10,214 INFO L263 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret5 := main(); {21#true} is VALID [2020-07-10 15:07:10,215 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(4);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(4);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {21#true} is VALID [2020-07-10 15:07:10,216 INFO L280 TraceCheckUtils]: 6: Hoare triple {21#true} assume 0 != ~n~0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {26#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} is VALID [2020-07-10 15:07:10,219 INFO L280 TraceCheckUtils]: 7: Hoare triple {26#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;call write~int(#t~nondet2, ~#d1~0.base, ~#d1~0.offset, 4);havoc #t~nondet2; {27#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} is VALID [2020-07-10 15:07:10,220 INFO L280 TraceCheckUtils]: 8: Hoare triple {27#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} assume !(~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset);call write~int(0, ~pd~0.base, ~pd~0.offset, 1); {22#false} is VALID [2020-07-10 15:07:10,220 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} #t~short4 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {22#false} is VALID [2020-07-10 15:07:10,220 INFO L280 TraceCheckUtils]: 10: Hoare triple {22#false} assume #t~short4;call #t~mem3 := read~int(~#d1~0.base, ~#d1~0.offset, 4);#t~short4 := 0 != #t~mem3; {22#false} is VALID [2020-07-10 15:07:10,221 INFO L280 TraceCheckUtils]: 11: Hoare triple {22#false} assume #t~short4;havoc #t~short4;havoc #t~mem3; {22#false} is VALID [2020-07-10 15:07:10,221 INFO L280 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-10 15:07:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:07:10,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990167038] [2020-07-10 15:07:10,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:07:10,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:07:10,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984394988] [2020-07-10 15:07:10,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-10 15:07:10,236 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:07:10,240 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:07:10,274 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:10,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:07:10,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:07:10,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:07:10,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:07:10,288 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2020-07-10 15:07:10,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:10,496 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-07-10 15:07:10,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 15:07:10,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-10 15:07:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:07:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:07:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-10 15:07:10,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:07:10,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2020-07-10 15:07:10,518 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2020-07-10 15:07:10,585 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:10,597 INFO L225 Difference]: With dead ends: 34 [2020-07-10 15:07:10,597 INFO L226 Difference]: Without dead ends: 21 [2020-07-10 15:07:10,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:07:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-10 15:07:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2020-07-10 15:07:10,652 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:07:10,653 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 16 states. [2020-07-10 15:07:10,653 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 16 states. [2020-07-10 15:07:10,654 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 16 states. [2020-07-10 15:07:10,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:10,658 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-07-10 15:07:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-07-10 15:07:10,658 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:10,659 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:10,659 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 21 states. [2020-07-10 15:07:10,659 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 21 states. [2020-07-10 15:07:10,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:10,663 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-07-10 15:07:10,663 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-07-10 15:07:10,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:10,664 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:10,664 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:07:10,664 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:07:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-10 15:07:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-07-10 15:07:10,668 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2020-07-10 15:07:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:07:10,669 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-07-10 15:07:10,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:07:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-07-10 15:07:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:07:10,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:10,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:10,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:07:10,671 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:10,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:10,672 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2020-07-10 15:07:10,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:10,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523186615] [2020-07-10 15:07:10,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:10,889 INFO L280 TraceCheckUtils]: 0: Hoare triple {144#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {135#true} is VALID [2020-07-10 15:07:10,890 INFO L280 TraceCheckUtils]: 1: Hoare triple {135#true} assume true; {135#true} is VALID [2020-07-10 15:07:10,890 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {135#true} {135#true} #35#return; {135#true} is VALID [2020-07-10 15:07:10,891 INFO L263 TraceCheckUtils]: 0: Hoare triple {135#true} call ULTIMATE.init(); {144#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:07:10,892 INFO L280 TraceCheckUtils]: 1: Hoare triple {144#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {135#true} is VALID [2020-07-10 15:07:10,892 INFO L280 TraceCheckUtils]: 2: Hoare triple {135#true} assume true; {135#true} is VALID [2020-07-10 15:07:10,892 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {135#true} {135#true} #35#return; {135#true} is VALID [2020-07-10 15:07:10,893 INFO L263 TraceCheckUtils]: 4: Hoare triple {135#true} call #t~ret5 := main(); {135#true} is VALID [2020-07-10 15:07:10,893 INFO L280 TraceCheckUtils]: 5: Hoare triple {135#true} call ~#d1~0.base, ~#d1~0.offset := #Ultimate.allocOnStack(4);call ~#d2~0.base, ~#d2~0.offset := #Ultimate.allocOnStack(4);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~n~0 := #t~nondet0;havoc #t~nondet0; {135#true} is VALID [2020-07-10 15:07:10,894 INFO L280 TraceCheckUtils]: 6: Hoare triple {135#true} assume 0 != ~n~0;#t~ite1.base, #t~ite1.offset := ~#d1~0.base, ~#d1~0.offset; {140#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} is VALID [2020-07-10 15:07:10,896 INFO L280 TraceCheckUtils]: 7: Hoare triple {140#(and (= |main_~#d1~0.base| |main_#t~ite1.base|) (= |main_#t~ite1.offset| |main_~#d1~0.offset|))} ~pd~0.base, ~pd~0.offset := #t~ite1.base, #t~ite1.offset;havoc #t~ite1.base, #t~ite1.offset;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;call write~int(#t~nondet2, ~#d1~0.base, ~#d1~0.offset, 4);havoc #t~nondet2; {141#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} is VALID [2020-07-10 15:07:10,897 INFO L280 TraceCheckUtils]: 8: Hoare triple {141#(and (= |main_~#d1~0.offset| main_~pd~0.offset) (= |main_~#d1~0.base| main_~pd~0.base))} assume ~pd~0.base == ~#d1~0.base && ~pd~0.offset == ~#d1~0.offset;call write~int(0, ~pd~0.base, ~pd~0.offset, 4); {142#(= 0 (select (select |#memory_int| |main_~#d1~0.base|) |main_~#d1~0.offset|))} is VALID [2020-07-10 15:07:10,899 INFO L280 TraceCheckUtils]: 9: Hoare triple {142#(= 0 (select (select |#memory_int| |main_~#d1~0.base|) |main_~#d1~0.offset|))} #t~short4 := ~pd~0.base == ~#d2~0.base && ~pd~0.offset == ~#d2~0.offset; {142#(= 0 (select (select |#memory_int| |main_~#d1~0.base|) |main_~#d1~0.offset|))} is VALID [2020-07-10 15:07:10,900 INFO L280 TraceCheckUtils]: 10: Hoare triple {142#(= 0 (select (select |#memory_int| |main_~#d1~0.base|) |main_~#d1~0.offset|))} assume #t~short4;call #t~mem3 := read~int(~#d1~0.base, ~#d1~0.offset, 4);#t~short4 := 0 != #t~mem3; {143#(not |main_#t~short4|)} is VALID [2020-07-10 15:07:10,902 INFO L280 TraceCheckUtils]: 11: Hoare triple {143#(not |main_#t~short4|)} assume #t~short4;havoc #t~short4;havoc #t~mem3; {136#false} is VALID [2020-07-10 15:07:10,902 INFO L280 TraceCheckUtils]: 12: Hoare triple {136#false} assume !false; {136#false} is VALID [2020-07-10 15:07:10,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:07:10,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523186615] [2020-07-10 15:07:10,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:07:10,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 15:07:10,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058895870] [2020-07-10 15:07:10,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-10 15:07:10,906 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:07:10,906 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 15:07:10,924 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:10,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 15:07:10,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:07:10,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 15:07:10,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-10 15:07:10,926 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2020-07-10 15:07:11,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:11,126 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-07-10 15:07:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-10 15:07:11,126 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-07-10 15:07:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:07:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:07:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2020-07-10 15:07:11,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 15:07:11,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2020-07-10 15:07:11,131 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 24 transitions. [2020-07-10 15:07:11,160 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:11,162 INFO L225 Difference]: With dead ends: 22 [2020-07-10 15:07:11,162 INFO L226 Difference]: Without dead ends: 14 [2020-07-10 15:07:11,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-10 15:07:11,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-07-10 15:07:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-07-10 15:07:11,171 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:07:11,171 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 14 states. [2020-07-10 15:07:11,172 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2020-07-10 15:07:11,172 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2020-07-10 15:07:11,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:11,173 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-10 15:07:11,174 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-10 15:07:11,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:11,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:11,174 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2020-07-10 15:07:11,174 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2020-07-10 15:07:11,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:11,176 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-10 15:07:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-10 15:07:11,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:11,177 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:11,177 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:07:11,177 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:07:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-10 15:07:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-07-10 15:07:11,179 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2020-07-10 15:07:11,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:07:11,179 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-07-10 15:07:11,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 15:07:11,180 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-07-10 15:07:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:07:11,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:11,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:11,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:07:11,181 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:11,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2020-07-10 15:07:11,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:11,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507234131] [2020-07-10 15:07:11,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:07:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:07:11,245 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:07:11,245 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:07:11,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:07:11,272 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:07:11,272 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:07:11,272 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:07:11,273 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-10 15:07:11,274 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:07:11,275 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 15:07:11,275 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:07:11,275 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:07:11,275 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:07:11,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:07:11 BoogieIcfgContainer [2020-07-10 15:07:11,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:07:11,281 INFO L168 Benchmark]: Toolchain (without parser) took 2217.72 ms. Allocated memory was 142.6 MB in the beginning and 227.5 MB in the end (delta: 84.9 MB). Free memory was 100.1 MB in the beginning and 144.2 MB in the end (delta: -44.1 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,282 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.36 ms. Allocated memory is still 142.6 MB. Free memory was 99.9 MB in the beginning and 89.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,284 INFO L168 Benchmark]: Boogie Preprocessor took 118.77 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 89.7 MB in the beginning and 176.5 MB in the end (delta: -86.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,284 INFO L168 Benchmark]: RCFGBuilder took 343.77 ms. Allocated memory is still 199.2 MB. Free memory was 176.5 MB in the beginning and 158.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,285 INFO L168 Benchmark]: TraceAbstraction took 1496.85 ms. Allocated memory was 199.2 MB in the beginning and 227.5 MB in the end (delta: 28.3 MB). Free memory was 157.7 MB in the beginning and 144.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:11,289 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 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 118.9 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.36 ms. Allocated memory is still 142.6 MB. Free memory was 99.9 MB in the beginning and 89.7 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.77 ms. Allocated memory was 142.6 MB in the beginning and 199.2 MB in the end (delta: 56.6 MB). Free memory was 89.7 MB in the beginning and 176.5 MB in the end (delta: -86.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.77 ms. Allocated memory is still 199.2 MB. Free memory was 176.5 MB in the beginning and 158.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1496.85 ms. Allocated memory was 199.2 MB in the beginning and 227.5 MB in the end (delta: 28.3 MB). Free memory was 157.7 MB in the beginning and 144.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] union dummy d1, d2; [L14] int n = __VERIFIER_nondet_int(); [L15] EXPR n ? &d1 : &d2 VAL [d1={3:0}, d2={2:0}, n=0, n ? &d1 : &d2={2:0}] [L15] union dummy *pd = n ? &d1 : &d2; [L16] d1.a = __VERIFIER_nondet_int() [L17] COND FALSE !(pd == &d1) [L20] pd->b = 0 VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}] [L22] pd == &d2 && d1.a != 0 [L22] EXPR d1.a [L22] pd == &d2 && d1.a != 0 VAL [d1={3:0}, d1.a=-1, d2={2:0}, n=0, pd={2:0}, pd == &d2 && d1.a != 0=1] [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() VAL [d1={3:0}, d2={2:0}, n=0, pd={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 12 SDslu, 59 SDs, 0 SdLazy, 84 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 948 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...