/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 17:44:40,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 17:44:40,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 17:44:40,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 17:44:40,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 17:44:40,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 17:44:40,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 17:44:40,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 17:44:40,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 17:44:40,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 17:44:40,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 17:44:40,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 17:44:40,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 17:44:40,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 17:44:40,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 17:44:40,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 17:44:40,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 17:44:40,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 17:44:40,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 17:44:40,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 17:44:40,299 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 [2021-02-19 17:44:40,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 17:44:40,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 17:44:40,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 17:44:40,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 17:44:40,380 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 17:44:40,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 17:44:40,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 17:44:40,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 17:44:40,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 17:44:40,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 17:44:40,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 17:44:40,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 17:44:40,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 17:44:40,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 17:44:40,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 17:44:40,385 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 17:44:40,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 17:44:40,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 17:44:40,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 17:44:40,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 17:44:40,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 17:44:40,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 17:44:40,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 17:44:40,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 17:44:40,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 17:44:40,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 17:44:40,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 17:44:40,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 17:44:40,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 17:44:40,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 17:44:40,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 17:44:40,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 17:44:40,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 17:44:40,952 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 17:44:40,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c [2021-02-19 17:44:41,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb8fb3b6/ab96bc56bee74a83906238983b93c181/FLAG63ad2cff7 [2021-02-19 17:44:41,799 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 17:44:41,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c [2021-02-19 17:44:41,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb8fb3b6/ab96bc56bee74a83906238983b93c181/FLAG63ad2cff7 [2021-02-19 17:44:42,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb8fb3b6/ab96bc56bee74a83906238983b93c181 [2021-02-19 17:44:42,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 17:44:42,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 17:44:42,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 17:44:42,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 17:44:42,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 17:44:42,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d953c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42, skipping insertion in model container [2021-02-19 17:44:42,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 17:44:42,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 17:44:42,369 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c[823,836] [2021-02-19 17:44:42,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:44:42,389 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 17:44:42,411 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test11.c[823,836] [2021-02-19 17:44:42,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 17:44:42,435 INFO L208 MainTranslator]: Completed translation [2021-02-19 17:44:42,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42 WrapperNode [2021-02-19 17:44:42,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 17:44:42,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 17:44:42,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 17:44:42,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 17:44:42,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (1/1) ... [2021-02-19 17:44:42,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 17:44:42,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 17:44:42,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 17:44:42,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 17:44:42,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (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 [2021-02-19 17:44:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 17:44:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 17:44:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 17:44:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2021-02-19 17:44:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 17:44:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 17:44:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 17:44:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 17:44:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 17:44:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 17:44:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 17:44:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 17:44:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 17:44:42,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 17:44:43,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 17:44:43,095 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 17:44:43,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:44:43 BoogieIcfgContainer [2021-02-19 17:44:43,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 17:44:43,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 17:44:43,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 17:44:43,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 17:44:43,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 05:44:42" (1/3) ... [2021-02-19 17:44:43,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa25ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:44:43, skipping insertion in model container [2021-02-19 17:44:43,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 05:44:42" (2/3) ... [2021-02-19 17:44:43,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa25ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 05:44:43, skipping insertion in model container [2021-02-19 17:44:43,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 05:44:43" (3/3) ... [2021-02-19 17:44:43,110 INFO L111 eAbstractionObserver]: Analyzing ICFG test11.c [2021-02-19 17:44:43,127 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 17:44:43,134 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 17:44:43,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 17:44:43,200 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 17:44:43,200 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 17:44:43,200 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 17:44:43,200 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 17:44:43,201 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 17:44:43,201 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 17:44:43,201 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 17:44:43,201 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 17:44:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-02-19 17:44:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-19 17:44:43,235 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:44:43,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:44:43,237 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:44:43,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:44:43,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1940527405, now seen corresponding path program 1 times [2021-02-19 17:44:43,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:44:43,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224414248] [2021-02-19 17:44:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:44:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:43,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:43,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 17:44:43,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-19 17:44:43,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:43,710 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-19 17:44:43,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:44:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:43,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:43,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:44:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:43,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:43,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:44:43,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224414248] [2021-02-19 17:44:43,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:44:43,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:44:43,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059593080] [2021-02-19 17:44:43,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:44:43,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:44:43,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:44:43,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:44:43,829 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2021-02-19 17:44:44,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:44:44,047 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-02-19 17:44:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:44:44,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-02-19 17:44:44,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:44:44,063 INFO L225 Difference]: With dead ends: 31 [2021-02-19 17:44:44,063 INFO L226 Difference]: Without dead ends: 19 [2021-02-19 17:44:44,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:44:44,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-02-19 17:44:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-02-19 17:44:44,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-02-19 17:44:44,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-02-19 17:44:44,130 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2021-02-19 17:44:44,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:44:44,130 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-02-19 17:44:44,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:44:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-02-19 17:44:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-19 17:44:44,132 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:44:44,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:44:44,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 17:44:44,133 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:44:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:44:44,134 INFO L82 PathProgramCache]: Analyzing trace with hash 832627571, now seen corresponding path program 1 times [2021-02-19 17:44:44,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:44:44,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737655303] [2021-02-19 17:44:44,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:44:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:44,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:44,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-19 17:44:44,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-19 17:44:44,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-02-19 17:44:44,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:44,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:44:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:44,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:44:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:44,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:44:44,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737655303] [2021-02-19 17:44:44,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:44:44,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 17:44:44,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128086803] [2021-02-19 17:44:44,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 17:44:44,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:44:44,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 17:44:44,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:44:44,594 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 6 states. [2021-02-19 17:44:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:44:44,852 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-02-19 17:44:44,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 17:44:44,853 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-19 17:44:44,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:44:44,855 INFO L225 Difference]: With dead ends: 21 [2021-02-19 17:44:44,855 INFO L226 Difference]: Without dead ends: 19 [2021-02-19 17:44:44,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-02-19 17:44:44,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-02-19 17:44:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-02-19 17:44:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-02-19 17:44:44,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-02-19 17:44:44,864 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2021-02-19 17:44:44,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:44:44,865 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-02-19 17:44:44,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 17:44:44,866 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-02-19 17:44:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-19 17:44:44,867 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 17:44:44,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 17:44:44,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 17:44:44,868 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 17:44:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 17:44:44,869 INFO L82 PathProgramCache]: Analyzing trace with hash 41652782, now seen corresponding path program 1 times [2021-02-19 17:44:44,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 17:44:44,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801757173] [2021-02-19 17:44:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 17:44:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:44,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:44,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 17:44:44,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 17:44:44,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:44,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:45,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 17:44:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:45,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:45,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-02-19 17:44:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 17:44:45,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 17:44:45,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 17:44:45,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 17:44:45,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801757173] [2021-02-19 17:44:45,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 17:44:45,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-19 17:44:45,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392950324] [2021-02-19 17:44:45,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-19 17:44:45,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 17:44:45,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-19 17:44:45,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-19 17:44:45,089 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2021-02-19 17:44:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 17:44:45,209 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-02-19 17:44:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 17:44:45,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-02-19 17:44:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 17:44:45,210 INFO L225 Difference]: With dead ends: 19 [2021-02-19 17:44:45,210 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 17:44:45,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 17:44:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 17:44:45,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 17:44:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 17:44:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 17:44:45,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-02-19 17:44:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 17:44:45,213 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 17:44:45,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-19 17:44:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 17:44:45,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 17:44:45,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 17:44:45,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 17:44:45,387 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-19 17:44:45,388 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-19 17:44:45,388 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-19 17:44:45,388 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:44:45,389 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2021-02-19 17:44:45,389 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:44:45,389 INFO L189 CegarLoopUtils]: For program point get_dummyFINAL(lines 9 12) no Hoare annotation was computed. [2021-02-19 17:44:45,389 INFO L189 CegarLoopUtils]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-02-19 17:44:45,390 INFO L192 CegarLoopUtils]: At program point get_dummyENTRY(lines 9 12) the Hoare annotation is: true [2021-02-19 17:44:45,390 INFO L189 CegarLoopUtils]: For program point get_dummyEXIT(lines 9 12) no Hoare annotation was computed. [2021-02-19 17:44:45,390 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 17:44:45,390 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 17:44:45,390 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 17:44:45,390 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 17:44:45,391 INFO L185 CegarLoopUtils]: At program point L27(lines 14 34) the Hoare annotation is: false [2021-02-19 17:44:45,391 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 14 34) no Hoare annotation was computed. [2021-02-19 17:44:45,391 INFO L189 CegarLoopUtils]: For program point L21(line 21) no Hoare annotation was computed. [2021-02-19 17:44:45,391 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= main_~pc~0.base 0)) (= |main_~#c~0.offset| main_~pc~0.offset)) [2021-02-19 17:44:45,391 INFO L189 CegarLoopUtils]: For program point L21-2(line 21) no Hoare annotation was computed. [2021-02-19 17:44:45,391 INFO L189 CegarLoopUtils]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-02-19 17:44:45,392 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 14 34) no Hoare annotation was computed. [2021-02-19 17:44:45,392 INFO L189 CegarLoopUtils]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2021-02-19 17:44:45,392 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 14 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-19 17:44:45,392 INFO L189 CegarLoopUtils]: For program point L26(lines 26 28) no Hoare annotation was computed. [2021-02-19 17:44:45,392 INFO L189 CegarLoopUtils]: For program point L20(lines 20 21) no Hoare annotation was computed. [2021-02-19 17:44:45,393 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2021-02-19 17:44:45,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 05:44:45 BoogieIcfgContainer [2021-02-19 17:44:45,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 17:44:45,408 INFO L168 Benchmark]: Toolchain (without parser) took 3261.20 ms. Allocated memory is still 153.1 MB. Free memory was 128.8 MB in the beginning and 108.6 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:44:45,409 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 153.1 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 17:44:45,410 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.25 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 118.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 17:44:45,411 INFO L168 Benchmark]: Boogie Preprocessor took 47.59 ms. Allocated memory is still 153.1 MB. Free memory was 118.2 MB in the beginning and 116.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-19 17:44:45,412 INFO L168 Benchmark]: RCFGBuilder took 611.54 ms. Allocated memory is still 153.1 MB. Free memory was 116.7 MB in the beginning and 133.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-19 17:44:45,413 INFO L168 Benchmark]: TraceAbstraction took 2306.68 ms. Allocated memory is still 153.1 MB. Free memory was 133.1 MB in the beginning and 108.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 8.0 GB. [2021-02-19 17:44:45,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 153.1 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 278.25 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 118.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.59 ms. Allocated memory is still 153.1 MB. Free memory was 118.2 MB in the beginning and 116.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 611.54 ms. Allocated memory is still 153.1 MB. Free memory was 116.7 MB in the beginning and 133.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2306.68 ms. Allocated memory is still 153.1 MB. Free memory was 133.1 MB in the beginning and 108.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 32 SDslu, 67 SDs, 0 SdLazy, 104 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 65 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 4067 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...