/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/bitvector/jain_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:13:40,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:13:40,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:13:40,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:13:40,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:13:40,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:13:40,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:13:40,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:13:40,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:13:40,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:13:40,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:13:40,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:13:40,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:13:40,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:13:40,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:13:40,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:13:40,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:13:40,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:13:40,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:13:40,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:13:40,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:13:40,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:13:40,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:13:40,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:13:40,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 13:13:40,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 13:13:40,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 13:13:40,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 13:13:40,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 13:13:40,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 13:13:40,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 13:13:40,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 13:13:40,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 13:13:40,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 13:13:40,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 13:13:40,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 13:13:40,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 13:13:40,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 13:13:40,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:13:40,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:13:40,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:13:40,143 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 [2021-02-23 13:13:40,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:13:40,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:13:40,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:13:40,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:13:40,178 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:13:40,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:13:40,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:13:40,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:13:40,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:13:40,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:13:40,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:13:40,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:13:40,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:13:40,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:13:40,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:13:40,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:13:40,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:13:40,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:13:40,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:13:40,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:13:40,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:13:40,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:13:40,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:13:40,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:13:40,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:13:40,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:13:40,182 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:13:40,182 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:13:40,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:13:40,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:13:40,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:13:40,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:13:40,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:13:40,612 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:13:40,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_4-2.c [2021-02-23 13:13:40,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838dc1e63/1600f712d51a4d13912b1d2eb25bdfc8/FLAGab435bf08 [2021-02-23 13:13:41,349 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:13:41,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c [2021-02-23 13:13:41,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838dc1e63/1600f712d51a4d13912b1d2eb25bdfc8/FLAGab435bf08 [2021-02-23 13:13:41,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/838dc1e63/1600f712d51a4d13912b1d2eb25bdfc8 [2021-02-23 13:13:41,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:13:41,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:13:41,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:13:41,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:13:41,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:13:41,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795da61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41, skipping insertion in model container [2021-02-23 13:13:41,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:13:41,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:13:41,894 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c[370,383] [2021-02-23 13:13:41,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:13:41,917 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:13:41,931 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_4-2.c[370,383] [2021-02-23 13:13:41,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:13:41,951 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:13:41,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41 WrapperNode [2021-02-23 13:13:41,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:13:41,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:13:41,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:13:41,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:13:41,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (1/1) ... [2021-02-23 13:13:41,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:13:41,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:13:41,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:13:41,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:13:41,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (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 [2021-02-23 13:13:42,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 13:13:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:13:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 13:13:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:13:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:13:42,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:13:42,345 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 13:13:42,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:13:42 BoogieIcfgContainer [2021-02-23 13:13:42,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:13:42,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:13:42,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:13:42,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:13:42,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:13:41" (1/3) ... [2021-02-23 13:13:42,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afafb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:13:42, skipping insertion in model container [2021-02-23 13:13:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:13:41" (2/3) ... [2021-02-23 13:13:42,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afafb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:13:42, skipping insertion in model container [2021-02-23 13:13:42,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:13:42" (3/3) ... [2021-02-23 13:13:42,357 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_4-2.c [2021-02-23 13:13:42,367 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:13:42,373 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:13:42,397 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:13:42,456 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:13:42,457 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:13:42,457 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:13:42,457 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:13:42,457 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:13:42,484 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:13:42,484 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:13:42,484 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:13:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2021-02-23 13:13:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-02-23 13:13:42,539 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:13:42,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:13:42,541 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:13:42,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:13:42,556 INFO L82 PathProgramCache]: Analyzing trace with hash 132498341, now seen corresponding path program 1 times [2021-02-23 13:13:42,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:13:42,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344338665] [2021-02-23 13:13:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:13:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:42,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:42,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:42,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:42,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:43,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 13:13:43,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:43,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:43,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:13:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:43,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:13:43,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344338665] [2021-02-23 13:13:43,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 13:13:43,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 13:13:43,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195923639] [2021-02-23 13:13:43,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 13:13:43,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:13:43,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 13:13:43,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 13:13:43,273 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 7 states. [2021-02-23 13:13:43,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:13:43,647 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-02-23 13:13:43,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 13:13:43,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2021-02-23 13:13:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:13:43,657 INFO L225 Difference]: With dead ends: 34 [2021-02-23 13:13:43,657 INFO L226 Difference]: Without dead ends: 21 [2021-02-23 13:13:43,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-23 13:13:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-02-23 13:13:43,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-02-23 13:13:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-02-23 13:13:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-02-23 13:13:43,706 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2021-02-23 13:13:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:13:43,706 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-02-23 13:13:43,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 13:13:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-02-23 13:13:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-23 13:13:43,708 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:13:43,708 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:13:43,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:13:43,709 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:13:43,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:13:43,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1946866940, now seen corresponding path program 1 times [2021-02-23 13:13:43,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:13:43,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626881080] [2021-02-23 13:13:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:13:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:43,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:43,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 13:13:43,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-23 13:13:43,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:43,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:43,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 13:13:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:43,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-02-23 13:13:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:43,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:43,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:43,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 13:13:43,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626881080] [2021-02-23 13:13:43,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864824300] [2021-02-23 13:13:43,974 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 [2021-02-23 13:13:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 13:13:44,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 29 conjunts are in the unsatisfiable core [2021-02-23 13:13:44,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-23 13:13:44,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:44,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:44,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:44,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 13:13:44,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-02-23 13:13:44,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:44,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:44,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:44,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 13:13:44,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:44,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:44,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:44,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:44,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:44,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 13:13:44,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 13:13:44,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 13:13:44,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 13:13:44,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 13:13:44,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 13:13:44,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:44,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 13:13:46,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:46,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 13:13:46,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:46,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:46,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:46,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:46,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:46,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-23 13:13:46,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:46,998 INFO L841 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-02-23 13:13:47,012 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:13:47,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 13:13:47,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 13:13:47,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,017 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 13:13:47,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 13:13:47,019 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-23 13:13:47,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-02-23 13:13:47,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:47,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 13:13:47,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 13:13:47,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:47,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 13:13:47,084 WARN L141 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-02-23 13:13:47,085 WARN L147 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size 1 [2021-02-23 13:13:47,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:47,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:47,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 13:13:47,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 13:13:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 13:13:47,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-23 13:13:47,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-23 13:13:47,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470970455] [2021-02-23 13:13:47,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 13:13:47,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-23 13:13:47,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 13:13:47,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-02-23 13:13:47,094 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 12 states. [2021-02-23 13:13:47,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 13:13:47,745 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-02-23 13:13:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 13:13:47,748 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2021-02-23 13:13:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 13:13:47,748 INFO L225 Difference]: With dead ends: 20 [2021-02-23 13:13:47,748 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 13:13:47,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2021-02-23 13:13:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 13:13:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 13:13:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 13:13:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 13:13:47,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-02-23 13:13:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 13:13:47,752 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 13:13:47,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 13:13:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 13:13:47,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 13:13:47,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-02-23 13:13:47,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 13:13:48,260 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 13:13:48,260 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 13:13:48,260 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 13:13:48,261 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:13:48,261 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 13:13:48,261 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:13:48,261 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-23 13:13:48,261 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 13:13:48,261 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 13:13:48,262 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-23 13:13:48,262 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 12 29) the Hoare annotation is: true [2021-02-23 13:13:48,262 INFO L185 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: (and (= (mod (* main_~x~0 3) (- 4)) 0) (= (mod (* main_~y~0 3) (- 4)) 0) (= (mod (* main_~z~0 7) (- 8)) 0)) [2021-02-23 13:13:48,262 INFO L185 CegarLoopUtils]: At program point L26-1(lines 20 27) the Hoare annotation is: (and (= (mod (* main_~x~0 3) (- 4)) 0) (= (mod (* main_~y~0 3) (- 4)) 0) (= (mod (* main_~z~0 7) (- 8)) 0)) [2021-02-23 13:13:48,262 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 12 29) no Hoare annotation was computed. [2021-02-23 13:13:48,262 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 27) no Hoare annotation was computed. [2021-02-23 13:13:48,277 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 12 29) no Hoare annotation was computed. [2021-02-23 13:13:48,278 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2021-02-23 13:13:48,278 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2021-02-23 13:13:48,278 INFO L189 CegarLoopUtils]: For program point L8(line 8) no Hoare annotation was computed. [2021-02-23 13:13:48,278 INFO L189 CegarLoopUtils]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-02-23 13:13:48,278 INFO L189 CegarLoopUtils]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2021-02-23 13:13:48,278 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-02-23 13:13:48,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:13:48 BoogieIcfgContainer [2021-02-23 13:13:48,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:13:48,298 INFO L168 Benchmark]: Toolchain (without parser) took 6595.76 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.9 MB in the beginning and 161.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 96.7 MB. Max. memory is 8.0 GB. [2021-02-23 13:13:48,298 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:13:48,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 115.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 13:13:48,300 INFO L168 Benchmark]: Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 114.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:13:48,300 INFO L168 Benchmark]: RCFGBuilder took 355.77 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 100.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 13:13:48,301 INFO L168 Benchmark]: TraceAbstraction took 5947.55 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 161.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:13:48,304 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 115.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.06 ms. Allocated memory is still 151.0 MB. Free memory was 115.4 MB in the beginning and 114.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 355.77 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 100.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5947.55 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 100.4 MB in the beginning and 161.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 20]: Loop Invariant Derived loop invariant: (x * 3 % -4 == 0 && y * 3 % -4 == 0) && z * 7 % -8 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 29 SDslu, 45 SDs, 0 SdLazy, 72 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 79 HoareAnnotationTreeSize, 9 FomulaSimplifications, 174 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 216 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 4238 SizeOfPredicates, 2 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/8 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...