/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/array-fpi/ss2f.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:47:43,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:47:43,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:47:43,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:47:43,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:47:43,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:47:43,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:47:43,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:47:43,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:47:43,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:47:43,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:47:43,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:47:43,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:47:43,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:47:43,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:47:43,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:47:43,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:47:43,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:47:43,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:47:43,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:47:43,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:47:43,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:47:43,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:47:43,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:47:43,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:47:43,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:47:43,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:47:43,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:47:43,682 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 00:47:43,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:47:43,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:47:43,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:47:43,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:47:43,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:47:43,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:47:43,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:47:43,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:47:43,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:47:43,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:47:43,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:47:43,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:47:43,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:47:43,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:47:43,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:47:43,720 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:47:43,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:47:43,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:47:43,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:47:43,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:47:43,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:47:43,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:47:43,722 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:47:44,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:47:44,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:47:44,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:47:44,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:47:44,021 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:47:44,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ss2f.c [2020-07-18 00:47:44,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d689439/91ff23af9b7641efb32d64d7ef7dc41f/FLAG336653ce2 [2020-07-18 00:47:44,560 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:47:44,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ss2f.c [2020-07-18 00:47:44,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d689439/91ff23af9b7641efb32d64d7ef7dc41f/FLAG336653ce2 [2020-07-18 00:47:44,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d689439/91ff23af9b7641efb32d64d7ef7dc41f [2020-07-18 00:47:44,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:47:44,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:47:44,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:44,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:47:44,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:47:44,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:44" (1/1) ... [2020-07-18 00:47:44,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb8fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:44, skipping insertion in model container [2020-07-18 00:47:44,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:44" (1/1) ... [2020-07-18 00:47:44,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:47:44,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:47:45,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:45,241 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:47:45,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:45,290 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:47:45,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45 WrapperNode [2020-07-18 00:47:45,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:45,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:47:45,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:47:45,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:47:45,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (1/1) ... [2020-07-18 00:47:45,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:47:45,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:47:45,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:47:45,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:47:45,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (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 00:47:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:47:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:47:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:47:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:47:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:47:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:47:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:47:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:47:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:47:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:47:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:47:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:47:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:47:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:47:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:47:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:47:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:47:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:47:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:47:46,116 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:47:46,116 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-18 00:47:46,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:46 BoogieIcfgContainer [2020-07-18 00:47:46,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:47:46,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:47:46,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:47:46,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:47:46,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:47:44" (1/3) ... [2020-07-18 00:47:46,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e920cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:46, skipping insertion in model container [2020-07-18 00:47:46,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:45" (2/3) ... [2020-07-18 00:47:46,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e920cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:46, skipping insertion in model container [2020-07-18 00:47:46,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:46" (3/3) ... [2020-07-18 00:47:46,130 INFO L109 eAbstractionObserver]: Analyzing ICFG ss2f.c [2020-07-18 00:47:46,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:47:46,149 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:47:46,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:47:46,187 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:47:46,188 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:47:46,188 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:47:46,188 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:47:46,188 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:47:46,189 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:47:46,189 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:47:46,189 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:47:46,207 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states. [2020-07-18 00:47:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-18 00:47:46,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:46,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:47:46,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:46,229 INFO L82 PathProgramCache]: Analyzing trace with hash -456074008, now seen corresponding path program 1 times [2020-07-18 00:47:46,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:46,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500941831] [2020-07-18 00:47:46,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:46,473 INFO L280 TraceCheckUtils]: 0: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {100#true} is VALID [2020-07-18 00:47:46,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {100#true} #valid := #valid[0 := 0]; {100#true} is VALID [2020-07-18 00:47:46,474 INFO L280 TraceCheckUtils]: 2: Hoare triple {100#true} assume 0 < #StackHeapBarrier; {100#true} is VALID [2020-07-18 00:47:46,475 INFO L280 TraceCheckUtils]: 3: Hoare triple {100#true} ~N~0 := 0; {100#true} is VALID [2020-07-18 00:47:46,475 INFO L280 TraceCheckUtils]: 4: Hoare triple {100#true} assume true; {100#true} is VALID [2020-07-18 00:47:46,476 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {100#true} {100#true} #188#return; {100#true} is VALID [2020-07-18 00:47:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:46,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {100#true} ~cond := #in~cond; {100#true} is VALID [2020-07-18 00:47:46,485 INFO L280 TraceCheckUtils]: 1: Hoare triple {100#true} assume !(0 == ~cond); {100#true} is VALID [2020-07-18 00:47:46,486 INFO L280 TraceCheckUtils]: 2: Hoare triple {100#true} assume true; {100#true} is VALID [2020-07-18 00:47:46,486 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {100#true} {100#true} #184#return; {100#true} is VALID [2020-07-18 00:47:46,488 INFO L263 TraceCheckUtils]: 0: Hoare triple {100#true} call ULTIMATE.init(); {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:47:46,488 INFO L280 TraceCheckUtils]: 1: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {100#true} is VALID [2020-07-18 00:47:46,488 INFO L280 TraceCheckUtils]: 2: Hoare triple {100#true} #valid := #valid[0 := 0]; {100#true} is VALID [2020-07-18 00:47:46,489 INFO L280 TraceCheckUtils]: 3: Hoare triple {100#true} assume 0 < #StackHeapBarrier; {100#true} is VALID [2020-07-18 00:47:46,489 INFO L280 TraceCheckUtils]: 4: Hoare triple {100#true} ~N~0 := 0; {100#true} is VALID [2020-07-18 00:47:46,489 INFO L280 TraceCheckUtils]: 5: Hoare triple {100#true} assume true; {100#true} is VALID [2020-07-18 00:47:46,490 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {100#true} {100#true} #188#return; {100#true} is VALID [2020-07-18 00:47:46,490 INFO L263 TraceCheckUtils]: 7: Hoare triple {100#true} call #t~ret18 := main(); {100#true} is VALID [2020-07-18 00:47:46,491 INFO L280 TraceCheckUtils]: 8: Hoare triple {100#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {100#true} is VALID [2020-07-18 00:47:46,491 INFO L280 TraceCheckUtils]: 9: Hoare triple {100#true} ~N~0 := #t~nondet0; {100#true} is VALID [2020-07-18 00:47:46,491 INFO L280 TraceCheckUtils]: 10: Hoare triple {100#true} havoc #t~nondet0; {100#true} is VALID [2020-07-18 00:47:46,492 INFO L280 TraceCheckUtils]: 11: Hoare triple {100#true} assume !(~N~0 <= 0); {100#true} is VALID [2020-07-18 00:47:46,492 INFO L263 TraceCheckUtils]: 12: Hoare triple {100#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {100#true} is VALID [2020-07-18 00:47:46,492 INFO L280 TraceCheckUtils]: 13: Hoare triple {100#true} ~cond := #in~cond; {100#true} is VALID [2020-07-18 00:47:46,493 INFO L280 TraceCheckUtils]: 14: Hoare triple {100#true} assume !(0 == ~cond); {100#true} is VALID [2020-07-18 00:47:46,493 INFO L280 TraceCheckUtils]: 15: Hoare triple {100#true} assume true; {100#true} is VALID [2020-07-18 00:47:46,493 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {100#true} {100#true} #184#return; {100#true} is VALID [2020-07-18 00:47:46,494 INFO L280 TraceCheckUtils]: 17: Hoare triple {100#true} havoc ~i~0; {100#true} is VALID [2020-07-18 00:47:46,494 INFO L280 TraceCheckUtils]: 18: Hoare triple {100#true} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {100#true} is VALID [2020-07-18 00:47:46,494 INFO L280 TraceCheckUtils]: 19: Hoare triple {100#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26-1 {100#true} is VALID [2020-07-18 00:47:46,495 INFO L280 TraceCheckUtils]: 20: Hoare triple {100#true} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {100#true} is VALID [2020-07-18 00:47:46,495 INFO L280 TraceCheckUtils]: 21: Hoare triple {100#true} SUMMARY for call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L29 {100#true} is VALID [2020-07-18 00:47:46,495 INFO L280 TraceCheckUtils]: 22: Hoare triple {100#true} ~i~0 := 0; {100#true} is VALID [2020-07-18 00:47:46,497 INFO L280 TraceCheckUtils]: 23: Hoare triple {100#true} assume !true; {101#false} is VALID [2020-07-18 00:47:46,497 INFO L280 TraceCheckUtils]: 24: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,497 INFO L280 TraceCheckUtils]: 25: Hoare triple {101#false} assume !true; {101#false} is VALID [2020-07-18 00:47:46,498 INFO L280 TraceCheckUtils]: 26: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,498 INFO L280 TraceCheckUtils]: 27: Hoare triple {101#false} assume !(~i~0 < ~N~0); {101#false} is VALID [2020-07-18 00:47:46,498 INFO L280 TraceCheckUtils]: 28: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,499 INFO L280 TraceCheckUtils]: 29: Hoare triple {101#false} assume !true; {101#false} is VALID [2020-07-18 00:47:46,499 INFO L280 TraceCheckUtils]: 30: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,499 INFO L280 TraceCheckUtils]: 31: Hoare triple {101#false} assume !true; {101#false} is VALID [2020-07-18 00:47:46,500 INFO L280 TraceCheckUtils]: 32: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,500 INFO L280 TraceCheckUtils]: 33: Hoare triple {101#false} assume !true; {101#false} is VALID [2020-07-18 00:47:46,500 INFO L280 TraceCheckUtils]: 34: Hoare triple {101#false} ~i~0 := 0; {101#false} is VALID [2020-07-18 00:47:46,501 INFO L280 TraceCheckUtils]: 35: Hoare triple {101#false} assume !!(~i~0 < ~N~0); {101#false} is VALID [2020-07-18 00:47:46,501 INFO L280 TraceCheckUtils]: 36: Hoare triple {101#false} SUMMARY for call #t~mem17 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); srcloc: L62 {101#false} is VALID [2020-07-18 00:47:46,501 INFO L263 TraceCheckUtils]: 37: Hoare triple {101#false} call __VERIFIER_assert((if #t~mem17 == ~N~0 * (2 + ~N~0) then 1 else 0)); {101#false} is VALID [2020-07-18 00:47:46,502 INFO L280 TraceCheckUtils]: 38: Hoare triple {101#false} ~cond := #in~cond; {101#false} is VALID [2020-07-18 00:47:46,502 INFO L280 TraceCheckUtils]: 39: Hoare triple {101#false} assume 0 == ~cond; {101#false} is VALID [2020-07-18 00:47:46,502 INFO L280 TraceCheckUtils]: 40: Hoare triple {101#false} assume !false; {101#false} is VALID [2020-07-18 00:47:46,509 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 00:47:46,512 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:46,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500941831] [2020-07-18 00:47:46,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:46,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:47:46,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010965273] [2020-07-18 00:47:46,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-07-18 00:47:46,525 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:46,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:47:46,595 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:46,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:47:46,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:46,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:47:46,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:46,608 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 3 states. [2020-07-18 00:47:47,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:47,127 INFO L93 Difference]: Finished difference Result 177 states and 208 transitions. [2020-07-18 00:47:47,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:47:47,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-07-18 00:47:47,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:47,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:47,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2020-07-18 00:47:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:47:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2020-07-18 00:47:47,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 208 transitions. [2020-07-18 00:47:47,388 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:47,403 INFO L225 Difference]: With dead ends: 177 [2020-07-18 00:47:47,404 INFO L226 Difference]: Without dead ends: 88 [2020-07-18 00:47:47,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:47:47,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-07-18 00:47:47,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-07-18 00:47:47,529 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:47,530 INFO L82 GeneralOperation]: Start isEquivalent. First operand 88 states. Second operand 88 states. [2020-07-18 00:47:47,531 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 88 states. [2020-07-18 00:47:47,531 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 88 states. [2020-07-18 00:47:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:47,539 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-07-18 00:47:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2020-07-18 00:47:47,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:47,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:47,542 INFO L74 IsIncluded]: Start isIncluded. First operand 88 states. Second operand 88 states. [2020-07-18 00:47:47,542 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 88 states. [2020-07-18 00:47:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:47,549 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2020-07-18 00:47:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2020-07-18 00:47:47,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:47,551 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:47,551 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:47,551 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-07-18 00:47:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 94 transitions. [2020-07-18 00:47:47,558 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 94 transitions. Word has length 41 [2020-07-18 00:47:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:47,559 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 94 transitions. [2020-07-18 00:47:47,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:47:47,559 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 88 states and 94 transitions. [2020-07-18 00:47:47,680 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 94 transitions. [2020-07-18 00:47:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-18 00:47:47,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:47,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:47:47,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:47:47,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:47,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:47,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1964521925, now seen corresponding path program 1 times [2020-07-18 00:47:47,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:47,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545849865] [2020-07-18 00:47:47,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:47,813 INFO L280 TraceCheckUtils]: 0: Hoare triple {835#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {821#true} is VALID [2020-07-18 00:47:47,814 INFO L280 TraceCheckUtils]: 1: Hoare triple {821#true} #valid := #valid[0 := 0]; {821#true} is VALID [2020-07-18 00:47:47,814 INFO L280 TraceCheckUtils]: 2: Hoare triple {821#true} assume 0 < #StackHeapBarrier; {821#true} is VALID [2020-07-18 00:47:47,814 INFO L280 TraceCheckUtils]: 3: Hoare triple {821#true} ~N~0 := 0; {821#true} is VALID [2020-07-18 00:47:47,815 INFO L280 TraceCheckUtils]: 4: Hoare triple {821#true} assume true; {821#true} is VALID [2020-07-18 00:47:47,815 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {821#true} {821#true} #188#return; {821#true} is VALID [2020-07-18 00:47:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:47,823 INFO L280 TraceCheckUtils]: 0: Hoare triple {821#true} ~cond := #in~cond; {821#true} is VALID [2020-07-18 00:47:47,823 INFO L280 TraceCheckUtils]: 1: Hoare triple {821#true} assume !(0 == ~cond); {821#true} is VALID [2020-07-18 00:47:47,824 INFO L280 TraceCheckUtils]: 2: Hoare triple {821#true} assume true; {821#true} is VALID [2020-07-18 00:47:47,825 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {821#true} {829#(<= 1 ~N~0)} #184#return; {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,826 INFO L263 TraceCheckUtils]: 0: Hoare triple {821#true} call ULTIMATE.init(); {835#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:47:47,826 INFO L280 TraceCheckUtils]: 1: Hoare triple {835#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {821#true} is VALID [2020-07-18 00:47:47,827 INFO L280 TraceCheckUtils]: 2: Hoare triple {821#true} #valid := #valid[0 := 0]; {821#true} is VALID [2020-07-18 00:47:47,827 INFO L280 TraceCheckUtils]: 3: Hoare triple {821#true} assume 0 < #StackHeapBarrier; {821#true} is VALID [2020-07-18 00:47:47,827 INFO L280 TraceCheckUtils]: 4: Hoare triple {821#true} ~N~0 := 0; {821#true} is VALID [2020-07-18 00:47:47,827 INFO L280 TraceCheckUtils]: 5: Hoare triple {821#true} assume true; {821#true} is VALID [2020-07-18 00:47:47,828 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {821#true} {821#true} #188#return; {821#true} is VALID [2020-07-18 00:47:47,828 INFO L263 TraceCheckUtils]: 7: Hoare triple {821#true} call #t~ret18 := main(); {821#true} is VALID [2020-07-18 00:47:47,828 INFO L280 TraceCheckUtils]: 8: Hoare triple {821#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {821#true} is VALID [2020-07-18 00:47:47,829 INFO L280 TraceCheckUtils]: 9: Hoare triple {821#true} ~N~0 := #t~nondet0; {821#true} is VALID [2020-07-18 00:47:47,829 INFO L280 TraceCheckUtils]: 10: Hoare triple {821#true} havoc #t~nondet0; {821#true} is VALID [2020-07-18 00:47:47,830 INFO L280 TraceCheckUtils]: 11: Hoare triple {821#true} assume !(~N~0 <= 0); {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,831 INFO L263 TraceCheckUtils]: 12: Hoare triple {829#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {821#true} is VALID [2020-07-18 00:47:47,831 INFO L280 TraceCheckUtils]: 13: Hoare triple {821#true} ~cond := #in~cond; {821#true} is VALID [2020-07-18 00:47:47,831 INFO L280 TraceCheckUtils]: 14: Hoare triple {821#true} assume !(0 == ~cond); {821#true} is VALID [2020-07-18 00:47:47,831 INFO L280 TraceCheckUtils]: 15: Hoare triple {821#true} assume true; {821#true} is VALID [2020-07-18 00:47:47,832 INFO L275 TraceCheckUtils]: 16: Hoare quadruple {821#true} {829#(<= 1 ~N~0)} #184#return; {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,833 INFO L280 TraceCheckUtils]: 17: Hoare triple {829#(<= 1 ~N~0)} havoc ~i~0; {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,834 INFO L280 TraceCheckUtils]: 18: Hoare triple {829#(<= 1 ~N~0)} SUMMARY for call ~#sum~0.base, ~#sum~0.offset := #Ultimate.allocOnStack(8); srcloc: L26 {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,835 INFO L280 TraceCheckUtils]: 19: Hoare triple {829#(<= 1 ~N~0)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8 * ~N~0); srcloc: L26-1 {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,835 INFO L280 TraceCheckUtils]: 20: Hoare triple {829#(<= 1 ~N~0)} ~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset; {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,836 INFO L280 TraceCheckUtils]: 21: Hoare triple {829#(<= 1 ~N~0)} SUMMARY for call write~int(0, ~#sum~0.base, ~#sum~0.offset, 8); srcloc: L29 {829#(<= 1 ~N~0)} is VALID [2020-07-18 00:47:47,837 INFO L280 TraceCheckUtils]: 22: Hoare triple {829#(<= 1 ~N~0)} ~i~0 := 0; {834#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID [2020-07-18 00:47:47,838 INFO L280 TraceCheckUtils]: 23: Hoare triple {834#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,838 INFO L280 TraceCheckUtils]: 24: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,839 INFO L280 TraceCheckUtils]: 25: Hoare triple {822#false} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,839 INFO L280 TraceCheckUtils]: 26: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,839 INFO L280 TraceCheckUtils]: 27: Hoare triple {822#false} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,840 INFO L280 TraceCheckUtils]: 28: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,840 INFO L280 TraceCheckUtils]: 29: Hoare triple {822#false} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,840 INFO L280 TraceCheckUtils]: 30: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,841 INFO L280 TraceCheckUtils]: 31: Hoare triple {822#false} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,841 INFO L280 TraceCheckUtils]: 32: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,841 INFO L280 TraceCheckUtils]: 33: Hoare triple {822#false} assume !(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,842 INFO L280 TraceCheckUtils]: 34: Hoare triple {822#false} ~i~0 := 0; {822#false} is VALID [2020-07-18 00:47:47,842 INFO L280 TraceCheckUtils]: 35: Hoare triple {822#false} assume !!(~i~0 < ~N~0); {822#false} is VALID [2020-07-18 00:47:47,842 INFO L280 TraceCheckUtils]: 36: Hoare triple {822#false} SUMMARY for call #t~mem17 := read~int(~a~0.base, ~a~0.offset + 8 * ~i~0, 8); srcloc: L62 {822#false} is VALID [2020-07-18 00:47:47,842 INFO L263 TraceCheckUtils]: 37: Hoare triple {822#false} call __VERIFIER_assert((if #t~mem17 == ~N~0 * (2 + ~N~0) then 1 else 0)); {822#false} is VALID [2020-07-18 00:47:47,843 INFO L280 TraceCheckUtils]: 38: Hoare triple {822#false} ~cond := #in~cond; {822#false} is VALID [2020-07-18 00:47:47,843 INFO L280 TraceCheckUtils]: 39: Hoare triple {822#false} assume 0 == ~cond; {822#false} is VALID [2020-07-18 00:47:47,843 INFO L280 TraceCheckUtils]: 40: Hoare triple {822#false} assume !false; {822#false} is VALID [2020-07-18 00:47:47,846 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 00:47:47,851 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:47:47,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545849865] [2020-07-18 00:47:47,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:47:47,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:47:47,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330604524] [2020-07-18 00:47:47,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-07-18 00:47:47,854 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:47:47,854 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:47:47,897 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:47,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:47:47,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:47:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:47:47,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:47:47,899 INFO L87 Difference]: Start difference. First operand 88 states and 94 transitions. Second operand 5 states. [2020-07-18 00:47:48,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:48,794 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2020-07-18 00:47:48,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:47:48,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-07-18 00:47:48,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:47:48,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2020-07-18 00:47:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:47:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2020-07-18 00:47:48,809 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 212 transitions. [2020-07-18 00:47:49,075 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 212 edges. 212 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:49,082 INFO L225 Difference]: With dead ends: 194 [2020-07-18 00:47:49,082 INFO L226 Difference]: Without dead ends: 134 [2020-07-18 00:47:49,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:47:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-18 00:47:49,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 94. [2020-07-18 00:47:49,217 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:47:49,218 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 94 states. [2020-07-18 00:47:49,218 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 94 states. [2020-07-18 00:47:49,218 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 94 states. [2020-07-18 00:47:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:49,226 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2020-07-18 00:47:49,226 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2020-07-18 00:47:49,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:49,228 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:49,228 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 134 states. [2020-07-18 00:47:49,228 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 134 states. [2020-07-18 00:47:49,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:47:49,235 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2020-07-18 00:47:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2020-07-18 00:47:49,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:47:49,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:47:49,237 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:47:49,237 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:47:49,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-18 00:47:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 100 transitions. [2020-07-18 00:47:49,241 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 100 transitions. Word has length 41 [2020-07-18 00:47:49,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:47:49,242 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 100 transitions. [2020-07-18 00:47:49,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:47:49,242 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 94 states and 100 transitions. [2020-07-18 00:47:49,382 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 100 edges. 100 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:47:49,383 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 100 transitions. [2020-07-18 00:47:49,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-18 00:47:49,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:49,386 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, 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, 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, 1, 1, 1, 1, 1, 1] [2020-07-18 00:47:49,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:47:49,386 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:49,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:49,387 INFO L82 PathProgramCache]: Analyzing trace with hash -725795370, now seen corresponding path program 1 times [2020-07-18 00:47:49,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:49,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100410929] [2020-07-18 00:47:49,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:49,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:47:49,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:290) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:47:49,442 INFO L168 Benchmark]: Toolchain (without parser) took 4502.17 ms. Allocated memory was 136.3 MB in the beginning and 250.1 MB in the end (delta: 113.8 MB). Free memory was 102.0 MB in the beginning and 111.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,444 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 136.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.86 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 90.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,446 INFO L168 Benchmark]: Boogie Preprocessor took 181.33 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 89.8 MB in the beginning and 179.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,448 INFO L168 Benchmark]: RCFGBuilder took 646.66 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 139.8 MB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,457 INFO L168 Benchmark]: TraceAbstraction took 3313.32 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 139.1 MB in the beginning and 111.1 MB in the end (delta: 27.9 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:49,466 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 136.3 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.86 ms. Allocated memory is still 136.3 MB. Free memory was 101.5 MB in the beginning and 90.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.33 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 89.8 MB in the beginning and 179.7 MB in the end (delta: -89.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 646.66 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 139.8 MB in the end (delta: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3313.32 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 139.1 MB in the beginning and 111.1 MB in the end (delta: 27.9 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...