/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/loops/terminator_01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:27:47,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:27:47,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:27:47,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:27:47,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:27:47,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:27:47,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:27:47,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:27:47,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:27:47,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:27:47,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:27:47,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:27:47,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:27:47,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:27:47,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:27:47,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:27:47,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:27:47,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:27:47,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:27:47,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:27:47,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:27:47,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:27:47,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:27:47,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:27:47,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:27:47,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:27:47,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:27:47,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:27:47,315 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 15:27:47,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:27:47,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:27:47,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:27:47,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:27:47,336 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:27:47,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:27:47,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:27:47,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:27:47,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:27:47,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:27:47,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:27:47,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:27:47,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:27:47,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:27:47,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:27:47,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:27:47,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:27:47,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:27:47,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:27:47,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:27:47,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:27:47,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:27:47,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:27:47,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:27:47,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:27:47,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:27:47,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:27:47,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:27:47,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:27:47,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:27:47,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:27:47,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:27:47,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:27:47,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:27:47,719 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:27:47,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_01.c [2020-07-10 15:27:47,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9fe62da/04bc8d50a67a478496f4e4d7fcab4a81/FLAGee02e8f33 [2020-07-10 15:27:48,394 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:27:48,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_01.c [2020-07-10 15:27:48,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9fe62da/04bc8d50a67a478496f4e4d7fcab4a81/FLAGee02e8f33 [2020-07-10 15:27:48,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9fe62da/04bc8d50a67a478496f4e4d7fcab4a81 [2020-07-10 15:27:48,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:27:48,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:27:48,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:48,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:27:48,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:27:48,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:48" (1/1) ... [2020-07-10 15:27:48,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa0269c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:48, skipping insertion in model container [2020-07-10 15:27:48,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:27:48" (1/1) ... [2020-07-10 15:27:48,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:27:48,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:27:49,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:49,064 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:27:49,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:27:49,103 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:27:49,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49 WrapperNode [2020-07-10 15:27:49,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:27:49,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:27:49,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:27:49,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:27:49,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (1/1) ... [2020-07-10 15:27:49,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:27:49,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:27:49,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:27:49,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:27:49,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (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 15:27:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:27:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:27:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:27:49,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:27:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:27:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:27:49,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:27:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:27:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 15:27:49,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-10 15:27:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 15:27:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 15:27:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 15:27:49,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:27:49,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:27:49,663 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:27:49,664 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:27:49,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:49 BoogieIcfgContainer [2020-07-10 15:27:49,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:27:49,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:27:49,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:27:49,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:27:49,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:27:48" (1/3) ... [2020-07-10 15:27:49,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac38ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:49, skipping insertion in model container [2020-07-10 15:27:49,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:27:49" (2/3) ... [2020-07-10 15:27:49,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eac38ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:27:49, skipping insertion in model container [2020-07-10 15:27:49,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:27:49" (3/3) ... [2020-07-10 15:27:49,683 INFO L109 eAbstractionObserver]: Analyzing ICFG terminator_01.c [2020-07-10 15:27:49,698 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:27:49,707 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:27:49,725 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:27:49,757 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:27:49,758 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:27:49,758 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:27:49,758 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:27:49,758 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:27:49,758 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:27:49,759 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:27:49,759 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:27:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-10 15:27:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:27:49,790 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:49,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:49,793 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:49,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:49,800 INFO L82 PathProgramCache]: Analyzing trace with hash -564387615, now seen corresponding path program 1 times [2020-07-10 15:27:49,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:49,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651302860] [2020-07-10 15:27:49,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:27:50,077 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; {23#true} is VALID [2020-07-10 15:27:50,078 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-10 15:27:50,079 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #34#return; {23#true} is VALID [2020-07-10 15:27:50,088 INFO L263 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {28#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 15:27:50,088 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; {23#true} is VALID [2020-07-10 15:27:50,089 INFO L280 TraceCheckUtils]: 2: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-10 15:27:50,089 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23#true} {23#true} #34#return; {23#true} is VALID [2020-07-10 15:27:50,090 INFO L263 TraceCheckUtils]: 4: Hoare triple {23#true} call #t~ret4 := main(); {23#true} is VALID [2020-07-10 15:27:50,090 INFO L280 TraceCheckUtils]: 5: Hoare triple {23#true} call ~#x~0.base, ~#x~0.offset := #Ultimate.allocOnStack(4);assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;call write~init~int(#t~nondet0, ~#x~0.base, ~#x~0.offset, 4);havoc #t~nondet0;~p~0.base, ~p~0.offset := ~#x~0.base, ~#x~0.offset; {23#true} is VALID [2020-07-10 15:27:50,091 INFO L280 TraceCheckUtils]: 6: Hoare triple {23#true} assume !true; {24#false} is VALID [2020-07-10 15:27:50,092 INFO L263 TraceCheckUtils]: 7: Hoare triple {24#false} call __VERIFIER_assert(0); {24#false} is VALID [2020-07-10 15:27:50,092 INFO L280 TraceCheckUtils]: 8: Hoare triple {24#false} ~cond := #in~cond; {24#false} is VALID [2020-07-10 15:27:50,093 INFO L280 TraceCheckUtils]: 9: Hoare triple {24#false} assume 0 == ~cond; {24#false} is VALID [2020-07-10 15:27:50,093 INFO L280 TraceCheckUtils]: 10: Hoare triple {24#false} assume !false; {24#false} is VALID [2020-07-10 15:27:50,095 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 15:27:50,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651302860] [2020-07-10 15:27:50,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:27:50,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 15:27:50,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407282846] [2020-07-10 15:27:50,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-10 15:27:50,111 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:27:50,117 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 15:27:50,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:50,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 15:27:50,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:27:50,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 15:27:50,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:27:50,167 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-07-10 15:27:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:50,399 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-10 15:27:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 15:27:50,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-10 15:27:50,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:27:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:27:50,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2020-07-10 15:27:50,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 15:27:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2020-07-10 15:27:50,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 35 transitions. [2020-07-10 15:27:50,523 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:27:50,538 INFO L225 Difference]: With dead ends: 32 [2020-07-10 15:27:50,539 INFO L226 Difference]: Without dead ends: 13 [2020-07-10 15:27:50,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 15:27:50,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-10 15:27:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-07-10 15:27:50,639 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:27:50,640 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2020-07-10 15:27:50,640 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-10 15:27:50,641 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-10 15:27:50,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:50,645 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:27:50,645 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:27:50,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:50,646 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:50,646 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-10 15:27:50,646 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-10 15:27:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:27:50,650 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:27:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:27:50,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:27:50,651 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:27:50,652 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:27:50,652 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:27:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 15:27:50,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-07-10 15:27:50,657 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2020-07-10 15:27:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:27:50,658 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-07-10 15:27:50,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 15:27:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:27:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-10 15:27:50,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:27:50,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:27:50,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:27:50,661 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:27:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:27:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash -538271495, now seen corresponding path program 1 times [2020-07-10 15:27:50,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:27:50,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142599137] [2020-07-10 15:27:50,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:27:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:27:50,749 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:27:50,750 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:27:50,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:27:50,785 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 15:27:50,785 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:50,785 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:27:50,785 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 15:27:50,786 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2020-07-10 15:27:50,787 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2020-07-10 15:27:50,788 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 15:27:50,788 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 15:27:50,788 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:50,788 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:27:50,788 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:27:50,789 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 15:27:50,789 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:27:50,789 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:27:50,789 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:27:50,789 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 15:27:50,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:27:50 BoogieIcfgContainer [2020-07-10 15:27:50,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:27:50,797 INFO L168 Benchmark]: Toolchain (without parser) took 2041.72 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 101.8 MB in the beginning and 108.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,799 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.62 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 91.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,801 INFO L168 Benchmark]: Boogie Preprocessor took 144.85 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.7 MB in the beginning and 178.9 MB in the end (delta: -87.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,802 INFO L168 Benchmark]: RCFGBuilder took 420.03 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 161.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,803 INFO L168 Benchmark]: TraceAbstraction took 1121.57 ms. Allocated memory is still 200.3 MB. Free memory was 161.7 MB in the beginning and 108.1 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:27:50,807 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 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.62 ms. Allocated memory is still 136.8 MB. Free memory was 101.6 MB in the beginning and 91.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.85 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 91.7 MB in the beginning and 178.9 MB in the end (delta: -87.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 420.03 ms. Allocated memory is still 200.3 MB. Free memory was 178.4 MB in the beginning and 161.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1121.57 ms. Allocated memory is still 200.3 MB. Free memory was 161.7 MB in the beginning and 108.1 MB in the end (delta: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] int x=__VERIFIER_nondet_int(); [L13] int x=__VERIFIER_nondet_int(); [L14] int *p = &x; VAL [p={2:0}, x={2:0}] [L16] EXPR \read(x) VAL [\read(x)=100, p={2:0}, x={2:0}] [L16] COND FALSE !(x<100) [L19] CALL __VERIFIER_assert(0) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 5 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...