/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound100.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-6253b08 [2021-05-06 09:52:57,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-06 09:52:57,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-06 09:52:58,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-06 09:52:58,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-06 09:52:58,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-06 09:52:58,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-06 09:52:58,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-06 09:52:58,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-06 09:52:58,060 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-06 09:52:58,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-06 09:52:58,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-06 09:52:58,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-06 09:52:58,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-06 09:52:58,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-06 09:52:58,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-06 09:52:58,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-06 09:52:58,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-06 09:52:58,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-06 09:52:58,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-06 09:52:58,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-05-06 09:52:58,108 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-06 09:52:58,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-06 09:52:58,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-06 09:52:58,111 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-06 09:52:58,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-06 09:52:58,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-06 09:52:58,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-06 09:52:58,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-06 09:52:58,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-06 09:52:58,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-06 09:52:58,113 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-06 09:52:58,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-06 09:52:58,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-06 09:52:58,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-06 09:52:58,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-06 09:52:58,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-06 09:52:58,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-06 09:52:58,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-06 09:52:58,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-06 09:52:58,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-06 09:52:58,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-06 09:52:58,115 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-05-06 09:52:58,115 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2021-05-06 09:52:58,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-06 09:52:58,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-06 09:52:58,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-06 09:52:58,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-06 09:52:58,462 INFO L275 PluginConnector]: CDTParser initialized [2021-05-06 09:52:58,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound100.c [2021-05-06 09:52:58,518 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5964c78e4/eaabd8da54d04e08aaab28c723129575/FLAG8f4d0a783 [2021-05-06 09:52:58,896 INFO L306 CDTParser]: Found 1 translation units. [2021-05-06 09:52:58,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/mannadiv_valuebound100.c [2021-05-06 09:52:58,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5964c78e4/eaabd8da54d04e08aaab28c723129575/FLAG8f4d0a783 [2021-05-06 09:52:58,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5964c78e4/eaabd8da54d04e08aaab28c723129575 [2021-05-06 09:52:58,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-06 09:52:58,915 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-06 09:52:58,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-06 09:52:58,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-06 09:52:58,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-06 09:52:58,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 09:52:58" (1/1) ... [2021-05-06 09:52:58,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724dfc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:58, skipping insertion in model container [2021-05-06 09:52:58,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.05 09:52:58" (1/1) ... [2021-05-06 09:52:58,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-06 09:52:58,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-06 09:52:59,080 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/mannadiv_valuebound100.c[573,586] [2021-05-06 09:52:59,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 09:52:59,098 INFO L203 MainTranslator]: Completed pre-run [2021-05-06 09:52:59,109 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/mannadiv_valuebound100.c[573,586] [2021-05-06 09:52:59,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-06 09:52:59,131 INFO L208 MainTranslator]: Completed translation [2021-05-06 09:52:59,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59 WrapperNode [2021-05-06 09:52:59,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-06 09:52:59,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-06 09:52:59,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-06 09:52:59,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-06 09:52:59,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-06 09:52:59,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-06 09:52:59,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-06 09:52:59,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-06 09:52:59,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (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 09:52:59,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-06 09:52:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-06 09:52:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-06 09:52:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-05-06 09:52:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-06 09:52:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-06 09:52:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-05-06 09:52:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-06 09:52:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-06 09:52:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-06 09:52:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-06 09:52:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-06 09:52:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-06 09:52:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-06 09:52:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-06 09:52:59,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-06 09:52:59,499 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-05-06 09:52:59,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 09:52:59 BoogieIcfgContainer [2021-05-06 09:52:59,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-06 09:52:59,501 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-05-06 09:52:59,501 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-05-06 09:52:59,502 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-05-06 09:52:59,504 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 09:52:59" (1/1) ... [2021-05-06 09:52:59,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 09:52:59 BasicIcfg [2021-05-06 09:52:59,516 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-05-06 09:52:59,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-06 09:52:59,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-06 09:52:59,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-06 09:52:59,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.05 09:52:58" (1/4) ... [2021-05-06 09:52:59,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c6172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 09:52:59, skipping insertion in model container [2021-05-06 09:52:59,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.05 09:52:59" (2/4) ... [2021-05-06 09:52:59,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c6172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.05 09:52:59, skipping insertion in model container [2021-05-06 09:52:59,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.05 09:52:59" (3/4) ... [2021-05-06 09:52:59,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c6172b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 09:52:59, skipping insertion in model container [2021-05-06 09:52:59,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.05 09:52:59" (4/4) ... [2021-05-06 09:52:59,522 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound100.cJordan [2021-05-06 09:52:59,526 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-05-06 09:52:59,529 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-06 09:52:59,542 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-06 09:52:59,556 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-06 09:52:59,556 INFO L377 AbstractCegarLoop]: Hoare is false [2021-05-06 09:52:59,556 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-05-06 09:52:59,556 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-06 09:52:59,556 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-06 09:52:59,556 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-06 09:52:59,556 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-06 09:52:59,556 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-06 09:52:59,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-05-06 09:52:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-06 09:52:59,571 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 09:52:59,572 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 09:52:59,572 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 09:52:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 09:52:59,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1058806997, now seen corresponding path program 1 times [2021-05-06 09:52:59,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 09:52:59,583 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046767343] [2021-05-06 09:52:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 09:52:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:52:59,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-06 09:52:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:52:59,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-05-06 09:52:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:52:59,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-05-06 09:52:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:52:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 09:52:59,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 09:52:59,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046767343] [2021-05-06 09:52:59,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046767343] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 09:52:59,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 09:52:59,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-06 09:52:59,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164690791] [2021-05-06 09:52:59,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-06 09:52:59,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 09:52:59,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-06 09:52:59,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 09:52:59,861 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 09:52:59,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 09:52:59,946 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-05-06 09:52:59,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-06 09:52:59,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-05-06 09:52:59,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 09:52:59,954 INFO L225 Difference]: With dead ends: 29 [2021-05-06 09:52:59,954 INFO L226 Difference]: Without dead ends: 24 [2021-05-06 09:52:59,956 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-06 09:52:59,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-05-06 09:52:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-05-06 09:52:59,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-05-06 09:52:59,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-05-06 09:52:59,989 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 22 [2021-05-06 09:52:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 09:52:59,990 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-05-06 09:52:59,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 09:52:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-05-06 09:52:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-05-06 09:52:59,992 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 09:52:59,993 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 09:52:59,993 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-06 09:52:59,994 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 09:52:59,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 09:52:59,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1056930164, now seen corresponding path program 1 times [2021-05-06 09:52:59,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 09:52:59,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114673322] [2021-05-06 09:52:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 09:53:00,038 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 09:53:00,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014334079] [2021-05-06 09:53:00,038 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 09:53:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:53:00,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 9 conjunts are in the unsatisfiable core [2021-05-06 09:53:00,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 09:53:00,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 09:53:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 09:53:00,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 09:53:00,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114673322] [2021-05-06 09:53:00,286 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 09:53:00,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014334079] [2021-05-06 09:53:00,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014334079] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-06 09:53:00,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-06 09:53:00,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-06 09:53:00,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282760459] [2021-05-06 09:53:00,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-06 09:53:00,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 09:53:00,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-06 09:53:00,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-06 09:53:00,291 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 09:53:00,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 09:53:00,346 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-05-06 09:53:00,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-06 09:53:00,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-05-06 09:53:00,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 09:53:00,349 INFO L225 Difference]: With dead ends: 33 [2021-05-06 09:53:00,349 INFO L226 Difference]: Without dead ends: 33 [2021-05-06 09:53:00,349 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-06 09:53:00,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-06 09:53:00,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2021-05-06 09:53:00,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2021-05-06 09:53:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-05-06 09:53:00,362 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22 [2021-05-06 09:53:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 09:53:00,363 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-05-06 09:53:00,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-05-06 09:53:00,364 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-05-06 09:53:00,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-05-06 09:53:00,365 INFO L515 BasicCegarLoop]: Found error trace [2021-05-06 09:53:00,370 INFO L523 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-06 09:53:00,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-06 09:53:00,595 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-06 09:53:00,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-06 09:53:00,596 INFO L82 PathProgramCache]: Analyzing trace with hash -127181274, now seen corresponding path program 1 times [2021-05-06 09:53:00,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-06 09:53:00,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369631247] [2021-05-06 09:53:00,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-06 09:53:00,606 ERROR L278 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-05-06 09:53:00,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100363763] [2021-05-06 09:53:00,606 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 09:53:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-06 09:53:00,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-06 09:53:00,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-06 09:53:00,825 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 09:53:00,829 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 09:53:00,840 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-05-06 09:53:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-05-06 09:53:00,852 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-06 09:53:00,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369631247] [2021-05-06 09:53:00,852 WARN L340 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-05-06 09:53:00,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100363763] [2021-05-06 09:53:00,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100363763] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-06 09:53:00,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-05-06 09:53:00,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-05-06 09:53:00,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443543214] [2021-05-06 09:53:00,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-06 09:53:00,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-06 09:53:00,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-06 09:53:00,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-05-06 09:53:00,854 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-06 09:53:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-06 09:53:00,909 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-05-06 09:53:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-06 09:53:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2021-05-06 09:53:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-06 09:53:00,910 INFO L225 Difference]: With dead ends: 28 [2021-05-06 09:53:00,910 INFO L226 Difference]: Without dead ends: 0 [2021-05-06 09:53:00,911 INFO L779 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.9ms TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-05-06 09:53:00,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-06 09:53:00,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-06 09:53:00,911 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 09:53:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-06 09:53:00,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2021-05-06 09:53:00,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-06 09:53:00,912 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-06 09:53:00,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-05-06 09:53:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-06 09:53:00,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-06 09:53:01,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-06 09:53:01,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.05 09:53:01 BasicIcfg [2021-05-06 09:53:01,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-06 09:53:01,137 INFO L168 Benchmark]: Toolchain (without parser) took 2221.78 ms. Allocated memory is still 184.5 MB. Free memory was 149.7 MB in the beginning and 136.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,137 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 184.5 MB. Free memory is still 166.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-05-06 09:53:01,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.48 ms. Allocated memory is still 184.5 MB. Free memory was 149.5 MB in the beginning and 139.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,137 INFO L168 Benchmark]: Boogie Preprocessor took 91.16 ms. Allocated memory is still 184.5 MB. Free memory was 139.9 MB in the beginning and 167.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,138 INFO L168 Benchmark]: RCFGBuilder took 275.97 ms. Allocated memory is still 184.5 MB. Free memory was 167.7 MB in the beginning and 153.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,138 INFO L168 Benchmark]: IcfgTransformer took 14.95 ms. Allocated memory is still 184.5 MB. Free memory was 153.0 MB in the beginning and 151.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,138 INFO L168 Benchmark]: TraceAbstraction took 1618.96 ms. Allocated memory is still 184.5 MB. Free memory was 150.9 MB in the beginning and 136.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-05-06 09:53:01,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 184.5 MB. Free memory is still 166.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 215.48 ms. Allocated memory is still 184.5 MB. Free memory was 149.5 MB in the beginning and 139.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.16 ms. Allocated memory is still 184.5 MB. Free memory was 139.9 MB in the beginning and 167.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 275.97 ms. Allocated memory is still 184.5 MB. Free memory was 167.7 MB in the beginning and 153.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * IcfgTransformer took 14.95 ms. Allocated memory is still 184.5 MB. Free memory was 153.0 MB in the beginning and 151.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1618.96 ms. Allocated memory is still 184.5 MB. Free memory was 150.9 MB in the beginning and 136.2 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 5 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1579.4ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 11.2ms, AutomataDifference: 223.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 66 SDtfs, 34 SDslu, 155 SDs, 0 SdLazy, 77 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 133.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: 35.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 57.2ms SsaConstructionTime, 104.4ms SatisfiabilityAnalysisTime, 465.5ms InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 4 NumberOfNonLiveVariables, 241 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 13/14 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...