/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:39:49,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:39:49,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:39:49,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:39:49,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:39:49,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:39:49,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:39:49,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:39:49,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:39:49,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:39:49,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:39:49,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:39:49,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:39:49,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:39:49,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:39:49,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:39:49,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:39:49,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:39:49,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:39:49,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:39:49,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:39:49,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:39:49,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:39:49,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:39:49,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 06:39:49,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:39:49,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:39:49,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:39:49,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:39:49,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:39:49,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:39:49,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:39:49,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:39:49,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:39:49,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:39:49,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:39:49,813 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 06:39:49,823 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:39:49,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:39:49,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:39:49,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:39:49,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:39:49,826 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:39:49,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:39:49,826 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:39:49,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:39:49,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:39:49,827 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:39:49,827 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:39:49,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:39:49,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:39:49,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:39:49,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:39:49,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:39:49,828 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 06:39:50,153 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:39:50,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:39:50,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:39:50,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:39:50,183 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:39:50,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-18 06:39:50,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad6e9bcf/e5e13b0fac1b448da169e0f1828ef46c/FLAGdb81f1410 [2020-07-18 06:39:50,799 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:39:50,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-07-18 06:39:50,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad6e9bcf/e5e13b0fac1b448da169e0f1828ef46c/FLAGdb81f1410 [2020-07-18 06:39:51,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad6e9bcf/e5e13b0fac1b448da169e0f1828ef46c [2020-07-18 06:39:51,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:39:51,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:39:51,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:39:51,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:39:51,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:39:51,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@edc2eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51, skipping insertion in model container [2020-07-18 06:39:51,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:39:51,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:39:51,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:39:51,395 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:39:51,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:39:51,434 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:39:51,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51 WrapperNode [2020-07-18 06:39:51,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:39:51,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:39:51,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:39:51,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:39:51,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (1/1) ... [2020-07-18 06:39:51,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:39:51,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:39:51,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:39:51,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:39:51,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (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 06:39:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:39:51,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:39:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 06:39:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:39:51,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:39:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:39:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 06:39:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 06:39:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:39:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 06:39:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:39:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:39:51,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:39:51,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:39:52,000 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 06:39:52,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:39:52 BoogieIcfgContainer [2020-07-18 06:39:52,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:39:52,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:39:52,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:39:52,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:39:52,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:39:51" (1/3) ... [2020-07-18 06:39:52,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686de820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:39:52, skipping insertion in model container [2020-07-18 06:39:52,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:39:51" (2/3) ... [2020-07-18 06:39:52,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686de820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:39:52, skipping insertion in model container [2020-07-18 06:39:52,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:39:52" (3/3) ... [2020-07-18 06:39:52,014 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-07-18 06:39:52,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:39:52,033 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:39:52,048 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:39:52,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:39:52,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:39:52,072 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:39:52,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:39:52,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:39:52,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:39:52,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:39:52,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:39:52,089 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-07-18 06:39:52,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 06:39:52,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:39:52,102 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] [2020-07-18 06:39:52,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:39:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:39:52,110 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-07-18 06:39:52,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:39:52,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354088308] [2020-07-18 06:39:52,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:39:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:39:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:39:52,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-18 06:39:52,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-18 06:39:52,315 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-18 06:39:52,318 INFO L263 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {42#(= ~SIZE~0 |old(~SIZE~0)|)} is VALID [2020-07-18 06:39:52,319 INFO L280 TraceCheckUtils]: 1: Hoare triple {42#(= ~SIZE~0 |old(~SIZE~0)|)} ~SIZE~0 := 20000001; {37#true} is VALID [2020-07-18 06:39:52,319 INFO L280 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2020-07-18 06:39:52,320 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #65#return; {37#true} is VALID [2020-07-18 06:39:52,320 INFO L263 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret1 := main(); {37#true} is VALID [2020-07-18 06:39:52,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {37#true} havoc ~n~0; {37#true} is VALID [2020-07-18 06:39:52,321 INFO L280 TraceCheckUtils]: 6: Hoare triple {37#true} havoc ~i~0; {37#true} is VALID [2020-07-18 06:39:52,321 INFO L280 TraceCheckUtils]: 7: Hoare triple {37#true} havoc ~j~0; {37#true} is VALID [2020-07-18 06:39:52,321 INFO L280 TraceCheckUtils]: 8: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-18 06:39:52,322 INFO L280 TraceCheckUtils]: 9: Hoare triple {37#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {37#true} is VALID [2020-07-18 06:39:52,322 INFO L280 TraceCheckUtils]: 10: Hoare triple {37#true} ~n~0 := #t~nondet0; {37#true} is VALID [2020-07-18 06:39:52,323 INFO L280 TraceCheckUtils]: 11: Hoare triple {37#true} havoc #t~nondet0; {37#true} is VALID [2020-07-18 06:39:52,324 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#true} assume !!(~n~0 % 4294967296 <= ~SIZE~0 % 4294967296); {37#true} is VALID [2020-07-18 06:39:52,324 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#true} ~i~0 := 0; {37#true} is VALID [2020-07-18 06:39:52,325 INFO L280 TraceCheckUtils]: 14: Hoare triple {37#true} ~j~0 := 0; {37#true} is VALID [2020-07-18 06:39:52,325 INFO L280 TraceCheckUtils]: 15: Hoare triple {37#true} ~l~0 := 0; {37#true} is VALID [2020-07-18 06:39:52,326 INFO L280 TraceCheckUtils]: 16: Hoare triple {37#true} assume !true; {38#false} is VALID [2020-07-18 06:39:52,327 INFO L263 TraceCheckUtils]: 17: Hoare triple {38#false} call __VERIFIER_assert((if (~i~0 + ~j~0) % 4294967296 == ~l~0 % 4294967296 then 1 else 0)); {38#false} is VALID [2020-07-18 06:39:52,327 INFO L280 TraceCheckUtils]: 18: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2020-07-18 06:39:52,328 INFO L280 TraceCheckUtils]: 19: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2020-07-18 06:39:52,328 INFO L280 TraceCheckUtils]: 20: Hoare triple {38#false} assume !false; {38#false} is VALID [2020-07-18 06:39:52,331 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 06:39:52,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354088308] [2020-07-18 06:39:52,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 06:39:52,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 06:39:52,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933373185] [2020-07-18 06:39:52,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-18 06:39:52,345 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 06:39:52,349 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 06:39:52,413 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:39:52,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 06:39:52,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 06:39:52,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 06:39:52,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 06:39:52,425 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-07-18 06:39:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:39:52,632 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-07-18 06:39:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 06:39:52,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-18 06:39:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 06:39:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 06:39:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-18 06:39:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 06:39:52,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2020-07-18 06:39:52,652 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 51 transitions. [2020-07-18 06:39:52,744 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:39:52,758 INFO L225 Difference]: With dead ends: 46 [2020-07-18 06:39:52,758 INFO L226 Difference]: Without dead ends: 26 [2020-07-18 06:39:52,763 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 [2020-07-18 06:39:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-18 06:39:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-18 06:39:52,844 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 06:39:52,845 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 26 states. [2020-07-18 06:39:52,845 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-18 06:39:52,846 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-18 06:39:52,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:39:52,851 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-18 06:39:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 06:39:52,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:39:52,852 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:39:52,853 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 26 states. [2020-07-18 06:39:52,853 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 26 states. [2020-07-18 06:39:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 06:39:52,858 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-07-18 06:39:52,858 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 06:39:52,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 06:39:52,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 06:39:52,859 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 06:39:52,860 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 06:39:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-18 06:39:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-07-18 06:39:52,865 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-07-18 06:39:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 06:39:52,866 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-07-18 06:39:52,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 06:39:52,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 27 transitions. [2020-07-18 06:39:52,915 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 06:39:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-07-18 06:39:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-18 06:39:52,917 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:39:52,917 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] [2020-07-18 06:39:52,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:39:52,918 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:39:52,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:39:52,919 INFO L82 PathProgramCache]: Analyzing trace with hash 948340612, now seen corresponding path program 1 times [2020-07-18 06:39:52,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:39:52,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268518219] [2020-07-18 06:39:52,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:39:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:39:52,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 06:39:52,981 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 06:39:52,989 INFO L168 Benchmark]: Toolchain (without parser) took 1824.94 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 89.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 77.4 MB. Max. memory is 7.1 GB. [2020-07-18 06:39:52,990 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 06:39:52,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.37 ms. Allocated memory is still 136.8 MB. Free memory was 102.1 MB in the beginning and 91.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-18 06:39:52,992 INFO L168 Benchmark]: Boogie Preprocessor took 132.31 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.9 MB in the beginning and 180.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-18 06:39:52,993 INFO L168 Benchmark]: RCFGBuilder took 435.68 ms. Allocated memory is still 200.8 MB. Free memory was 179.6 MB in the beginning and 161.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:39:52,994 INFO L168 Benchmark]: TraceAbstraction took 978.95 ms. Allocated memory is still 200.8 MB. Free memory was 160.4 MB in the beginning and 89.1 MB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. [2020-07-18 06:39:53,000 INFO L336 ainManager$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 0.20 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.37 ms. Allocated memory is still 136.8 MB. Free memory was 102.1 MB in the beginning and 91.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.31 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.9 MB in the beginning and 180.0 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 435.68 ms. Allocated memory is still 200.8 MB. Free memory was 179.6 MB in the beginning and 161.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 978.95 ms. Allocated memory is still 200.8 MB. Free memory was 160.4 MB in the beginning and 89.1 MB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...