/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:44,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:44,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:44,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:44,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:44,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:44,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:44,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:44,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:44,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:44,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:44,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:44,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:44,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:44,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:44,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:44,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:44,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:44,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:44,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:44,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:44,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:44,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:44,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:44,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:44,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:44,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:44,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:44,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:50:44,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:44,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:44,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:44,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:44,461 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:44,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:44,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:44,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:44,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:44,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:44,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:44,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:44,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:44,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:44,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:44,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:44,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:44,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:44,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:44,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:44,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:44,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:44,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:44,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:44,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:44,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:44,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:44,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:44,466 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:44,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:44,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:44,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:44,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:44,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:44,805 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:44,805 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex04.c [2020-07-17 22:50:44,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9d88532/ab3f41717b84486d9ffde4d123e26611/FLAG4a6340bb5 [2020-07-17 22:50:45,399 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:45,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04.c [2020-07-17 22:50:45,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9d88532/ab3f41717b84486d9ffde4d123e26611/FLAG4a6340bb5 [2020-07-17 22:50:45,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd9d88532/ab3f41717b84486d9ffde4d123e26611 [2020-07-17 22:50:45,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:45,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:45,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:45,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:45,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:45,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:45" (1/1) ... [2020-07-17 22:50:45,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d57911f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:45, skipping insertion in model container [2020-07-17 22:50:45,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:45" (1/1) ... [2020-07-17 22:50:45,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:45,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:46,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:46,011 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:46,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:46,047 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:46,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46 WrapperNode [2020-07-17 22:50:46,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:46,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:46,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:46,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:46,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (1/1) ... [2020-07-17 22:50:46,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:46,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:46,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:46,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:46,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (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 [2020-07-17 22:50:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 22:50:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-17 22:50:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 22:50:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 22:50:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 22:50:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-17 22:50:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:46,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:46,635 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 22:50:46,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:46 BoogieIcfgContainer [2020-07-17 22:50:46,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:46,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:46,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:46,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:46,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:45" (1/3) ... [2020-07-17 22:50:46,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f52c583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:46, skipping insertion in model container [2020-07-17 22:50:46,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:46" (2/3) ... [2020-07-17 22:50:46,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f52c583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:46, skipping insertion in model container [2020-07-17 22:50:46,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:46" (3/3) ... [2020-07-17 22:50:46,648 INFO L109 eAbstractionObserver]: Analyzing ICFG trex04.c [2020-07-17 22:50:46,659 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:46,667 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:46,680 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:46,704 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:46,705 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:46,705 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:46,705 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:46,705 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:46,705 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:46,705 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:46,706 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:46,725 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-17 22:50:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 22:50:46,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:46,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:46,734 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:46,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:46,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1434576833, now seen corresponding path program 1 times [2020-07-17 22:50:46,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:46,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247644897] [2020-07-17 22:50:46,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:46,917 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:50:46,918 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33#true} {33#true} #83#return; {33#true} is VALID [2020-07-17 22:50:46,920 INFO L263 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {33#true} is VALID [2020-07-17 22:50:46,921 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-17 22:50:46,922 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #83#return; {33#true} is VALID [2020-07-17 22:50:46,922 INFO L263 TraceCheckUtils]: 3: Hoare triple {33#true} call #t~ret9 := main(); {33#true} is VALID [2020-07-17 22:50:46,923 INFO L280 TraceCheckUtils]: 4: Hoare triple {33#true} ~d~0 := 1;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~x~0 := #t~nondet4;havoc #t~nondet4; {33#true} is VALID [2020-07-17 22:50:46,923 INFO L280 TraceCheckUtils]: 5: Hoare triple {33#true} assume !!(~x~0 <= 1000000 && ~x~0 >= -1000000);~c1~1 := #t~nondet5;havoc #t~nondet5;~c2~1 := #t~nondet6;havoc #t~nondet6; {33#true} is VALID [2020-07-17 22:50:46,924 INFO L280 TraceCheckUtils]: 6: Hoare triple {33#true} assume 0 != ~c1~1 % 256;~d~0 := ~d~0 - 1; {33#true} is VALID [2020-07-17 22:50:46,924 INFO L280 TraceCheckUtils]: 7: Hoare triple {33#true} assume !(0 != ~c2~1 % 256); {33#true} is VALID [2020-07-17 22:50:46,925 INFO L280 TraceCheckUtils]: 8: Hoare triple {33#true} ~c1~1 := #t~nondet7;havoc #t~nondet7;~c2~1 := #t~nondet8;havoc #t~nondet8; {33#true} is VALID [2020-07-17 22:50:46,925 INFO L280 TraceCheckUtils]: 9: Hoare triple {33#true} assume !(0 != ~c1~1 % 256); {33#true} is VALID [2020-07-17 22:50:46,925 INFO L280 TraceCheckUtils]: 10: Hoare triple {33#true} assume 0 != ~c2~1 % 256;~d~0 := ~d~0 - 1; {33#true} is VALID [2020-07-17 22:50:46,928 INFO L280 TraceCheckUtils]: 11: Hoare triple {33#true} assume !true; {34#false} is VALID [2020-07-17 22:50:46,928 INFO L263 TraceCheckUtils]: 12: Hoare triple {34#false} call __VERIFIER_assert((if ~x~0 <= 0 then 1 else 0)); {34#false} is VALID [2020-07-17 22:50:46,929 INFO L280 TraceCheckUtils]: 13: Hoare triple {34#false} ~cond := #in~cond; {34#false} is VALID [2020-07-17 22:50:46,929 INFO L280 TraceCheckUtils]: 14: Hoare triple {34#false} assume 0 == ~cond; {34#false} is VALID [2020-07-17 22:50:46,930 INFO L280 TraceCheckUtils]: 15: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-17 22:50:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:46,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247644897] [2020-07-17 22:50:46,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:46,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-17 22:50:46,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122895225] [2020-07-17 22:50:46,944 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-17 22:50:46,949 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:46,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-17 22:50:47,005 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:47,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-17 22:50:47,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:47,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-17 22:50:47,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 22:50:47,015 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-07-17 22:50:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,126 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-07-17 22:50:47,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-17 22:50:47,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-17 22:50:47,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2020-07-17 22:50:47,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-17 22:50:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 52 transitions. [2020-07-17 22:50:47,143 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 52 transitions. [2020-07-17 22:50:47,247 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:47,260 INFO L225 Difference]: With dead ends: 41 [2020-07-17 22:50:47,260 INFO L226 Difference]: Without dead ends: 24 [2020-07-17 22:50:47,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-17 22:50:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-07-17 22:50:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-07-17 22:50:47,317 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:47,317 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 24 states. [2020-07-17 22:50:47,318 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2020-07-17 22:50:47,318 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2020-07-17 22:50:47,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,324 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-07-17 22:50:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-07-17 22:50:47,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:47,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:47,325 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2020-07-17 22:50:47,325 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2020-07-17 22:50:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,330 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-07-17 22:50:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-07-17 22:50:47,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:47,331 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:47,332 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:47,332 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-07-17 22:50:47,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2020-07-17 22:50:47,337 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2020-07-17 22:50:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:47,338 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-07-17 22:50:47,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-17 22:50:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2020-07-17 22:50:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 22:50:47,339 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:47,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:47,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:47,340 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:47,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:47,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1438270917, now seen corresponding path program 1 times [2020-07-17 22:50:47,341 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:47,341 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565752805] [2020-07-17 22:50:47,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:47,453 INFO L280 TraceCheckUtils]: 0: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-17 22:50:47,454 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {172#true} {172#true} #83#return; {172#true} is VALID [2020-07-17 22:50:47,454 INFO L263 TraceCheckUtils]: 0: Hoare triple {172#true} call ULTIMATE.init(); {172#true} is VALID [2020-07-17 22:50:47,454 INFO L280 TraceCheckUtils]: 1: Hoare triple {172#true} assume true; {172#true} is VALID [2020-07-17 22:50:47,455 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {172#true} {172#true} #83#return; {172#true} is VALID [2020-07-17 22:50:47,455 INFO L263 TraceCheckUtils]: 3: Hoare triple {172#true} call #t~ret9 := main(); {172#true} is VALID [2020-07-17 22:50:47,456 INFO L280 TraceCheckUtils]: 4: Hoare triple {172#true} ~d~0 := 1;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~x~0 := #t~nondet4;havoc #t~nondet4; {172#true} is VALID [2020-07-17 22:50:47,456 INFO L280 TraceCheckUtils]: 5: Hoare triple {172#true} assume !!(~x~0 <= 1000000 && ~x~0 >= -1000000);~c1~1 := #t~nondet5;havoc #t~nondet5;~c2~1 := #t~nondet6;havoc #t~nondet6; {172#true} is VALID [2020-07-17 22:50:47,457 INFO L280 TraceCheckUtils]: 6: Hoare triple {172#true} assume 0 != ~c1~1 % 256;~d~0 := ~d~0 - 1; {172#true} is VALID [2020-07-17 22:50:47,457 INFO L280 TraceCheckUtils]: 7: Hoare triple {172#true} assume !(0 != ~c2~1 % 256); {172#true} is VALID [2020-07-17 22:50:47,457 INFO L280 TraceCheckUtils]: 8: Hoare triple {172#true} ~c1~1 := #t~nondet7;havoc #t~nondet7;~c2~1 := #t~nondet8;havoc #t~nondet8; {172#true} is VALID [2020-07-17 22:50:47,458 INFO L280 TraceCheckUtils]: 9: Hoare triple {172#true} assume !(0 != ~c1~1 % 256); {172#true} is VALID [2020-07-17 22:50:47,458 INFO L280 TraceCheckUtils]: 10: Hoare triple {172#true} assume 0 != ~c2~1 % 256;~d~0 := ~d~0 - 1; {172#true} is VALID [2020-07-17 22:50:47,459 INFO L280 TraceCheckUtils]: 11: Hoare triple {172#true} assume !(~x~0 > 0); {176#(<= main_~x~0 0)} is VALID [2020-07-17 22:50:47,461 INFO L263 TraceCheckUtils]: 12: Hoare triple {176#(<= main_~x~0 0)} call __VERIFIER_assert((if ~x~0 <= 0 then 1 else 0)); {177#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:50:47,462 INFO L280 TraceCheckUtils]: 13: Hoare triple {177#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {178#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:50:47,463 INFO L280 TraceCheckUtils]: 14: Hoare triple {178#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {173#false} is VALID [2020-07-17 22:50:47,464 INFO L280 TraceCheckUtils]: 15: Hoare triple {173#false} assume !false; {173#false} is VALID [2020-07-17 22:50:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:47,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565752805] [2020-07-17 22:50:47,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:47,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 22:50:47,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037760271] [2020-07-17 22:50:47,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-17 22:50:47,470 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:47,470 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-17 22:50:47,499 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:47,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 22:50:47,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:47,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 22:50:47,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:50:47,501 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 5 states. [2020-07-17 22:50:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,686 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-07-17 22:50:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 22:50:47,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-17 22:50:47,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:47,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-07-17 22:50:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-17 22:50:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-07-17 22:50:47,693 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 31 transitions. [2020-07-17 22:50:47,733 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:47,734 INFO L225 Difference]: With dead ends: 24 [2020-07-17 22:50:47,734 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:50:47,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:50:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:50:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:50:47,736 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:47,737 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:47,737 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:47,737 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:47,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,737 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:47,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:47,738 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:47,738 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:47,739 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:47,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:47,739 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:47,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:47,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:47,740 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:47,740 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:47,740 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:50:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:50:47,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-17 22:50:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:47,741 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:50:47,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 22:50:47,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:47,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:47,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:47,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:50:47,793 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 22:50:47,794 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:47,794 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 16 23) no Hoare annotation was computed. [2020-07-17 22:50:47,794 INFO L271 CegarLoopResult]: At program point fooENTRY(lines 16 23) the Hoare annotation is: true [2020-07-17 22:50:47,794 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-07-17 22:50:47,795 INFO L268 CegarLoopResult]: For program point L21-1(lines 16 23) no Hoare annotation was computed. [2020-07-17 22:50:47,795 INFO L268 CegarLoopResult]: For program point L20-2(lines 17 23) no Hoare annotation was computed. [2020-07-17 22:50:47,795 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:47,795 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 22:50:47,795 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:50:47,796 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:47,796 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:47,796 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-17 22:50:47,796 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:47,796 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-17 22:50:47,797 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-07-17 22:50:47,797 INFO L268 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-07-17 22:50:47,797 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-07-17 22:50:47,797 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 25 46) no Hoare annotation was computed. [2020-07-17 22:50:47,797 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 25 46) no Hoare annotation was computed. [2020-07-17 22:50:47,798 INFO L268 CegarLoopResult]: For program point L40-1(lines 26 46) no Hoare annotation was computed. [2020-07-17 22:50:47,798 INFO L264 CegarLoopResult]: At program point L40-2(lines 40 43) the Hoare annotation is: (<= main_~x~0 0) [2020-07-17 22:50:47,798 INFO L268 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-07-17 22:50:47,798 INFO L268 CegarLoopResult]: For program point L32-2(lines 26 46) no Hoare annotation was computed. [2020-07-17 22:50:47,798 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 25 46) the Hoare annotation is: true [2020-07-17 22:50:47,798 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-17 22:50:47,799 INFO L271 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: true [2020-07-17 22:50:47,799 INFO L268 CegarLoopResult]: For program point L37-3(lines 26 46) no Hoare annotation was computed. [2020-07-17 22:50:47,799 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-07-17 22:50:47,799 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 7 12) no Hoare annotation was computed. [2020-07-17 22:50:47,799 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-07-17 22:50:47,799 INFO L268 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-07-17 22:50:47,800 INFO L268 CegarLoopResult]: For program point L8-2(lines 7 12) no Hoare annotation was computed. [2020-07-17 22:50:47,800 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-07-17 22:50:47,805 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:47,806 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:47,806 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-17 22:50:47,806 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:50:47,806 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:47,807 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-17 22:50:47,808 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-17 22:50:47,809 WARN L170 areAnnotationChecker]: L9 has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: L8-2 has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:47,810 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:47,811 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-17 22:50:47,812 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:47,813 INFO L163 areAnnotationChecker]: CFG has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:50:47,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:47 BoogieIcfgContainer [2020-07-17 22:50:47,820 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:47,827 INFO L168 Benchmark]: Toolchain (without parser) took 2072.18 ms. Allocated memory was 145.2 MB in the beginning and 235.9 MB in the end (delta: 90.7 MB). Free memory was 102.9 MB in the beginning and 183.2 MB in the end (delta: -80.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,828 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.49 ms. Allocated memory is still 145.2 MB. Free memory was 102.6 MB in the beginning and 92.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,830 INFO L168 Benchmark]: Boogie Preprocessor took 124.06 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,831 INFO L168 Benchmark]: RCFGBuilder took 466.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 158.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,832 INFO L168 Benchmark]: TraceAbstraction took 1179.57 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 158.0 MB in the beginning and 183.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:47,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.49 ms. Allocated memory is still 145.2 MB. Free memory was 102.6 MB in the beginning and 92.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.06 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 180.4 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.92 ms. Allocated memory is still 202.4 MB. Free memory was 180.4 MB in the beginning and 158.0 MB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1179.57 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 158.0 MB in the beginning and 183.2 MB in the end (delta: -25.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 1 SDslu, 79 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...