/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 02:43:42,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 02:43:42,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 02:43:42,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 02:43:42,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 02:43:42,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 02:43:42,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 02:43:42,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 02:43:42,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 02:43:42,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 02:43:42,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 02:43:42,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 02:43:42,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 02:43:42,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 02:43:42,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 02:43:42,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 02:43:42,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 02:43:42,092 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 02:43:42,093 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 02:43:42,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 02:43:42,094 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 [2021-05-06 02:43:42,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 02:43:42,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 02:43:42,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * Use SBE=true [2021-05-06 02:43:42,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 02:43:42,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 02:43:42,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 02:43:42,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 02:43:42,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-05-06 02:43:42,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 02:43:42,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 02:43:42,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 02:43:42,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 02:43:42,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 02:43:42,400 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 02:43:42,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound5.c [2021-05-06 02:43:42,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5ed9a8bd/c09fbda072c74490b5808631dd113813/FLAG6b6a08dfb [2021-05-06 02:43:42,871 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 02:43:42,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound5.c [2021-05-06 02:43:42,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5ed9a8bd/c09fbda072c74490b5808631dd113813/FLAG6b6a08dfb [2021-05-06 02:43:43,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5ed9a8bd/c09fbda072c74490b5808631dd113813 [2021-05-06 02:43:43,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 02:43:43,298 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-06 02:43:43,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 02:43:43,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 02:43:43,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 02:43:43,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b152825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43, skipping insertion in model container [2021-05-06 02:43:43,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 02:43:43,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 02:43:43,400 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound5.c[524,537] [2021-05-06 02:43:43,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 02:43:43,430 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 02:43:43,462 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/fermat2-ll_valuebound5.c[524,537] [2021-05-06 02:43:43,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 02:43:43,492 INFO L208 MainTranslator]: Completed translation [2021-05-06 02:43:43,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43 WrapperNode [2021-05-06 02:43:43,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 02:43:43,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 02:43:43,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 02:43:43,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 02:43:43,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (1/1) ... [2021-05-06 02:43:43,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 02:43:43,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 02:43:43,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 02:43:43,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 02:43:43,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (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 [2021-05-06 02:43:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 02:43:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 02:43:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 02:43:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 02:43:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 02:43:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 02:43:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 02:43:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 02:43:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 02:43:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 02:43:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 02:43:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 02:43:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 02:43:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 02:43:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 02:43:43,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 02:43:43,905 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 02:43:43,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 02:43:43 BoogieIcfgContainer [2021-05-06 02:43:43,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 02:43:43,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 02:43:43,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 02:43:43,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 02:43:43,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 02:43:43" (1/3) ... [2021-05-06 02:43:43,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a94c5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 02:43:43, skipping insertion in model container [2021-05-06 02:43:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 02:43:43" (2/3) ... [2021-05-06 02:43:43,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a94c5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 02:43:43, skipping insertion in model container [2021-05-06 02:43:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 02:43:43" (3/3) ... [2021-05-06 02:43:43,910 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound5.c [2021-05-06 02:43:43,929 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-06 02:43:43,932 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 02:43:43,941 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 02:43:43,968 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 02:43:43,968 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-06 02:43:43,968 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-06 02:43:43,968 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 02:43:43,968 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 02:43:43,968 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 02:43:43,968 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 02:43:43,968 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 02:43:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-05-06 02:43:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-06 02:43:43,984 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 02:43:43,985 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 02:43:43,985 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 02:43:43,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 02:43:43,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1790211013, now seen corresponding path program 1 times [2021-05-06 02:43:43,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 02:43:43,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925172601] [2021-05-06 02:43:43,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 02:43:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 02:43:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 02:43:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-05-06 02:43:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-05-06 02:43:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-05-06 02:43:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,141 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-06 02:43:44,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 02:43:44,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925172601] [2021-05-06 02:43:44,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925172601] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 02:43:44,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 02:43:44,143 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 02:43:44,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13463715] [2021-05-06 02:43:44,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 02:43:44,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 02:43:44,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 02:43:44,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 02:43:44,154 INFO L87 Difference]: Start difference. First operand has 32 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-06 02:43:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 02:43:44,214 INFO L93 Difference]: Finished difference Result 57 states and 80 transitions. [2021-05-06 02:43:44,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 02:43:44,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2021-05-06 02:43:44,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 02:43:44,220 INFO L225 Difference]: With dead ends: 57 [2021-05-06 02:43:44,221 INFO L226 Difference]: Without dead ends: 27 [2021-05-06 02:43:44,223 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 02:43:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-05-06 02:43:44,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-05-06 02:43:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 02:43:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-05-06 02:43:44,247 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 33 [2021-05-06 02:43:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 02:43:44,247 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-05-06 02:43:44,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-05-06 02:43:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-05-06 02:43:44,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-06 02:43:44,249 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 02:43:44,249 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 02:43:44,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 02:43:44,249 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 02:43:44,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 02:43:44,250 INFO L82 PathProgramCache]: Analyzing trace with hash -102231875, now seen corresponding path program 1 times [2021-05-06 02:43:44,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 02:43:44,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173524476] [2021-05-06 02:43:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 02:43:44,263 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 02:43:44,263 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435052241] [2021-05-06 02:43:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 02:43:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:44,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-06 02:43:44,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 02:43:44,443 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:44,444 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:44,453 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-06 02:43:44,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 02:43:44,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173524476] [2021-05-06 02:43:44,466 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 02:43:44,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435052241] [2021-05-06 02:43:44,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435052241] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 02:43:44,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 02:43:44,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 02:43:44,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567020935] [2021-05-06 02:43:44,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 02:43:44,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 02:43:44,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 02:43:44,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 02:43:44,468 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-05-06 02:43:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 02:43:44,745 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2021-05-06 02:43:44,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 02:43:44,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 33 [2021-05-06 02:43:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 02:43:44,749 INFO L225 Difference]: With dead ends: 38 [2021-05-06 02:43:44,749 INFO L226 Difference]: Without dead ends: 36 [2021-05-06 02:43:44,749 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.4ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 02:43:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-05-06 02:43:44,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-05-06 02:43:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 22 states have internal predecessors, (26), 9 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-05-06 02:43:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-05-06 02:43:44,773 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 33 [2021-05-06 02:43:44,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 02:43:44,776 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-05-06 02:43:44,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-05-06 02:43:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-05-06 02:43:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-06 02:43:44,782 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 02:43:44,783 INFO L523 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 02:43:44,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 02:43:44,984 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 02:43:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 02:43:44,984 INFO L82 PathProgramCache]: Analyzing trace with hash -453872510, now seen corresponding path program 1 times [2021-05-06 02:43:44,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 02:43:44,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969024068] [2021-05-06 02:43:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 02:43:44,994 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 02:43:44,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502765379] [2021-05-06 02:43:44,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 02:43:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 02:43:45,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-06 02:43:45,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 02:43:45,141 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:45,146 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:45,158 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 02:43:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-05-06 02:43:45,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 02:43:45,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969024068] [2021-05-06 02:43:45,168 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 02:43:45,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502765379] [2021-05-06 02:43:45,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502765379] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 02:43:45,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 02:43:45,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-06 02:43:45,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7026947] [2021-05-06 02:43:45,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 02:43:45,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 02:43:45,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 02:43:45,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-06 02:43:45,170 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-06 02:43:45,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 02:43:45,222 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-05-06 02:43:45,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 02:43:45,223 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2021-05-06 02:43:45,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 02:43:45,223 INFO L225 Difference]: With dead ends: 35 [2021-05-06 02:43:45,223 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 02:43:45,224 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 42.5ms TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-05-06 02:43:45,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 02:43:45,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 02:43:45,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-06 02:43:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 02:43:45,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2021-05-06 02:43:45,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 02:43:45,225 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 02:43:45,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-05-06 02:43:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 02:43:45,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 02:43:45,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 02:43:45,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 5) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 5) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 5) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-05-06 02:43:45,591 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-05-06 02:43:45,591 INFO L201 CegarLoopUtils]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2021-05-06 02:43:45,591 INFO L198 CegarLoopUtils]: For program point L9(line 9) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L194 CegarLoopUtils]: At program point L35-2(lines 35 46) the Hoare annotation is: (let ((.cse1 (* main_~v~0 main_~v~0)) (.cse2 (* main_~A~0 4)) (.cse3 (* main_~u~0 2)) (.cse0 (+ (* main_~u~0 main_~u~0) (* main_~v~0 2)))) (and (= .cse0 (+ .cse1 .cse2 (* main_~r~0 4) .cse3)) (= (+ .cse1 .cse2 .cse3) .cse0))) [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point L29(line 29) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L201 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-05-06 02:43:45,592 INFO L201 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point mainEXIT(lines 19 51) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L201 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2021-05-06 02:43:45,592 INFO L201 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: true [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point mainFINAL(lines 19 51) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L194 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (= (+ (* main_~u~0 main_~u~0) (* main_~v~0 2)) (+ (* main_~v~0 main_~v~0) (* main_~A~0 4) (* main_~r~0 4) (* main_~u~0 2))) [2021-05-06 02:43:45,592 INFO L198 CegarLoopUtils]: For program point L36-1(lines 35 46) no Hoare annotation was computed. [2021-05-06 02:43:45,592 INFO L201 CegarLoopUtils]: At program point mainENTRY(lines 19 51) the Hoare annotation is: true [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point L49(line 49) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point L39(lines 39 45) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L194 CegarLoopUtils]: At program point L39-2(lines 35 46) the Hoare annotation is: (= (+ (* main_~u~0 main_~u~0) (* main_~v~0 2)) (+ (* main_~v~0 main_~v~0) (* main_~A~0 4) (* main_~r~0 4) (* main_~u~0 2))) [2021-05-06 02:43:45,593 INFO L201 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 11 17) the Hoare annotation is: true [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2021-05-06 02:43:45,593 INFO L198 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-05-06 02:43:45,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 02:43:45 BoogieIcfgContainer [2021-05-06 02:43:45,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 02:43:45,603 INFO L168 Benchmark]: Toolchain (without parser) took 2304.99 ms. Allocated memory was 235.9 MB in the beginning and 318.8 MB in the end (delta: 82.8 MB). Free memory was 200.0 MB in the beginning and 214.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 69.0 MB. Max. memory is 8.0 GB. [2021-05-06 02:43:45,603 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 235.9 MB. Free memory is still 216.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 02:43:45,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.79 ms. Allocated memory is still 235.9 MB. Free memory was 199.8 MB in the beginning and 216.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. [2021-05-06 02:43:45,604 INFO L168 Benchmark]: Boogie Preprocessor took 53.24 ms. Allocated memory is still 235.9 MB. Free memory was 216.6 MB in the beginning and 218.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-05-06 02:43:45,604 INFO L168 Benchmark]: RCFGBuilder took 358.58 ms. Allocated memory is still 235.9 MB. Free memory was 218.1 MB in the beginning and 202.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-05-06 02:43:45,604 INFO L168 Benchmark]: TraceAbstraction took 1696.27 ms. Allocated memory was 235.9 MB in the beginning and 318.8 MB in the end (delta: 82.8 MB). Free memory was 202.4 MB in the beginning and 214.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 71.8 MB. Max. memory is 8.0 GB. [2021-05-06 02:43:45,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 235.9 MB. Free memory is still 216.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 192.79 ms. Allocated memory is still 235.9 MB. Free memory was 199.8 MB in the beginning and 216.6 MB in the end (delta: -16.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.24 ms. Allocated memory is still 235.9 MB. Free memory was 216.6 MB in the beginning and 218.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 358.58 ms. Allocated memory is still 235.9 MB. Free memory was 218.1 MB in the beginning and 202.9 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1696.27 ms. Allocated memory was 235.9 MB in the beginning and 318.8 MB in the end (delta: 82.8 MB). Free memory was 202.4 MB in the beginning and 214.5 MB in the end (delta: -12.0 MB). Peak memory consumption was 71.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1467.1ms, OverallIterations: 3, TraceHistogramMax: 4, EmptinessCheckTime: 9.9ms, AutomataDifference: 412.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 157.4ms, InitialAbstractionConstructionTime: 8.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 79 SDtfs, 35 SDslu, 200 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 316.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 104.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 13 LocationsWithAnnotation, 23 PreInvPairs, 31 NumberOfFragments, 122 HoareAnnotationTreeSize, 23 FomulaSimplifications, 214 FormulaSimplificationTreeSizeReduction, 79.6ms HoareSimplificationTime, 13 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 70.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 22.5ms SsaConstructionTime, 79.6ms SatisfiabilityAnalysisTime, 314.8ms InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 5 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 73/74 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: u * u + v * 2 == v * v + A * 4 + r * 4 + u * 2 RESULT: Ultimate proved your program to be correct! Received shutdown request...