/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/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:21:46,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:21:46,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:21:46,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:21:46,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:21:46,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:21:46,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:21:46,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:21:46,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:21:46,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:21:46,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:21:46,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:21:46,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:21:46,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:21:46,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:21:46,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:21:46,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:21:46,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:21:46,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:21:46,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:21:46,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:21:46,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:21:46,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:21:46,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:21:47,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:21:47,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:21:47,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:21:47,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:21:47,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:21:47,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:21:47,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:21:47,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:21:47,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:21:47,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:21:47,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:21:47,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:21:47,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:21:47,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:21:47,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:21:47,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:21:47,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:21:47,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:21:47,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:21:47,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:21:47,059 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:21:47,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:21:47,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:21:47,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:21:47,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:21:47,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:21:47,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:21:47,061 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:21:47,062 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:21:47,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:21:47,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:21:47,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:21:47,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:21:47,609 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:21:47,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2021-02-24 04:21:47,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889f8bb43/65612fbb15734ab0b10aec287836f5ea/FLAG6637bbd72 [2021-02-24 04:21:48,314 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:21:48,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2021-02-24 04:21:48,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889f8bb43/65612fbb15734ab0b10aec287836f5ea/FLAG6637bbd72 [2021-02-24 04:21:48,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/889f8bb43/65612fbb15734ab0b10aec287836f5ea [2021-02-24 04:21:48,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:21:48,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:21:48,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:48,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:21:48,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:21:48,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:48,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a4bd36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48, skipping insertion in model container [2021-02-24 04:21:48,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:48,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:21:48,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:21:48,888 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c[298,311] [2021-02-24 04:21:48,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:48,929 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:21:48,943 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c[298,311] [2021-02-24 04:21:48,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:21:48,972 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:21:48,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48 WrapperNode [2021-02-24 04:21:48,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:21:48,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:21:48,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:21:48,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:21:48,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:48,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:48,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:48,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:49,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:49,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:49,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (1/1) ... [2021-02-24 04:21:49,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:21:49,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:21:49,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:21:49,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:21:49,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (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 [2021-02-24 04:21:49,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:21:49,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2021-02-24 04:21:49,133 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2021-02-24 04:21:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2021-02-24 04:21:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2021-02-24 04:21:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2021-02-24 04:21:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2021-02-24 04:21:49,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:21:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:21:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:21:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:21:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:21:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-24 04:21:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:21:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-02-24 04:21:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2021-02-24 04:21:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:21:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:21:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:21:49,576 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:21:49,577 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:21:49,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:49 BoogieIcfgContainer [2021-02-24 04:21:49,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:21:49,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:21:49,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:21:49,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:21:49,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:21:48" (1/3) ... [2021-02-24 04:21:49,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b90acc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:49, skipping insertion in model container [2021-02-24 04:21:49,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:21:48" (2/3) ... [2021-02-24 04:21:49,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b90acc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:21:49, skipping insertion in model container [2021-02-24 04:21:49,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:21:49" (3/3) ... [2021-02-24 04:21:49,590 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2021-02-24 04:21:49,598 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:21:49,603 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:21:49,625 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:21:49,653 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:21:49,653 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:21:49,653 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:21:49,654 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:21:49,654 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:21:49,654 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:21:49,654 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:21:49,654 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:21:49,676 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2021-02-24 04:21:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:21:49,688 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:49,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:21:49,690 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:49,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1510621862, now seen corresponding path program 1 times [2021-02-24 04:21:49,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:49,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088323973] [2021-02-24 04:21:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:49,794 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:50,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:50,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:50,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:50,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:50,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:21:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:50,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:50,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:21:50,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088323973] [2021-02-24 04:21:50,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:50,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-24 04:21:50,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912035132] [2021-02-24 04:21:50,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-24 04:21:50,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:50,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-24 04:21:50,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:21:50,252 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2021-02-24 04:21:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:50,753 INFO L93 Difference]: Finished difference Result 208 states and 253 transitions. [2021-02-24 04:21:50,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-24 04:21:50,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2021-02-24 04:21:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:50,768 INFO L225 Difference]: With dead ends: 208 [2021-02-24 04:21:50,768 INFO L226 Difference]: Without dead ends: 109 [2021-02-24 04:21:50,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-02-24 04:21:50,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-24 04:21:50,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-02-24 04:21:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-24 04:21:50,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2021-02-24 04:21:50,845 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 27 [2021-02-24 04:21:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:50,846 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2021-02-24 04:21:50,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-24 04:21:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2021-02-24 04:21:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-24 04:21:50,848 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:50,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:21:50,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:21:50,849 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:50,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:50,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1907990770, now seen corresponding path program 1 times [2021-02-24 04:21:50,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:50,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430177269] [2021-02-24 04:21:50,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:50,855 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:50,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:21:50,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:21:50,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:50,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 04:21:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:21:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:21:51,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430177269] [2021-02-24 04:21:51,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:51,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:21:51,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970730089] [2021-02-24 04:21:51,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:21:51,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:51,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:21:51,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:21:51,033 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 5 states. [2021-02-24 04:21:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:51,495 INFO L93 Difference]: Finished difference Result 179 states and 210 transitions. [2021-02-24 04:21:51,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:21:51,496 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-02-24 04:21:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:51,499 INFO L225 Difference]: With dead ends: 179 [2021-02-24 04:21:51,500 INFO L226 Difference]: Without dead ends: 172 [2021-02-24 04:21:51,502 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:21:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-02-24 04:21:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2021-02-24 04:21:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2021-02-24 04:21:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 198 transitions. [2021-02-24 04:21:51,539 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 198 transitions. Word has length 29 [2021-02-24 04:21:51,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:51,540 INFO L480 AbstractCegarLoop]: Abstraction has 168 states and 198 transitions. [2021-02-24 04:21:51,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:21:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 198 transitions. [2021-02-24 04:21:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:21:51,543 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:51,543 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:21:51,543 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:21:51,543 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:51,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:51,544 INFO L82 PathProgramCache]: Analyzing trace with hash 843041052, now seen corresponding path program 1 times [2021-02-24 04:21:51,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:51,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2014475003] [2021-02-24 04:21:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:51,548 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:21:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:21:51,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:21:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-24 04:21:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-02-24 04:21:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:21:51,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:51,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:21:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:21:51,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2014475003] [2021-02-24 04:21:51,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:21:51,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:21:51,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149601672] [2021-02-24 04:21:51,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:21:51,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:21:51,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:21:51,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:21:51,723 INFO L87 Difference]: Start difference. First operand 168 states and 198 transitions. Second operand 6 states. [2021-02-24 04:21:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:21:52,035 INFO L93 Difference]: Finished difference Result 419 states and 522 transitions. [2021-02-24 04:21:52,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 04:21:52,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2021-02-24 04:21:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:21:52,040 INFO L225 Difference]: With dead ends: 419 [2021-02-24 04:21:52,040 INFO L226 Difference]: Without dead ends: 273 [2021-02-24 04:21:52,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:21:52,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-02-24 04:21:52,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 208. [2021-02-24 04:21:52,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2021-02-24 04:21:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 249 transitions. [2021-02-24 04:21:52,078 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 249 transitions. Word has length 46 [2021-02-24 04:21:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:21:52,078 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 249 transitions. [2021-02-24 04:21:52,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:21:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 249 transitions. [2021-02-24 04:21:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-24 04:21:52,081 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:21:52,082 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:21:52,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:21:52,082 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:21:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:21:52,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1649941128, now seen corresponding path program 1 times [2021-02-24 04:21:52,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:21:52,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514900767] [2021-02-24 04:21:52,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:21:52,135 WARN L141 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-02-24 04:21:52,167 WARN L147 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size 33 [2021-02-24 04:21:52,176 WARN L141 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-02-24 04:21:52,179 WARN L147 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size 33 [2021-02-24 04:21:52,202 WARN L141 QuantifierPusher]: treesize reduction 28, result has 22.2 percent of original size [2021-02-24 04:21:52,206 WARN L147 QuantifierPusher]: treesize reduction 28, result has 22.2 percent of original size 8 [2021-02-24 04:21:52,214 WARN L141 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size [2021-02-24 04:21:52,218 WARN L147 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size 36 [2021-02-24 04:21:52,224 WARN L141 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-02-24 04:21:52,230 WARN L147 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size 31 [2021-02-24 04:21:52,234 WARN L141 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-02-24 04:21:52,239 WARN L147 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size 31 [2021-02-24 04:21:52,264 WARN L141 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size [2021-02-24 04:21:52,271 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:21:52,285 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:52,286 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:21:52,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:52,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-24 04:21:52,315 WARN L147 QuantifierPusher]: treesize reduction 4, result has 88.9 percent of original size 32 [2021-02-24 04:21:52,333 WARN L141 QuantifierPusher]: treesize reduction 8, result has 91.9 percent of original size [2021-02-24 04:21:52,343 WARN L147 QuantifierPusher]: treesize reduction 8, result has 91.9 percent of original size 91 [2021-02-24 04:21:52,346 WARN L141 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-02-24 04:21:52,355 WARN L147 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size 29 [2021-02-24 04:21:52,358 WARN L141 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-02-24 04:21:52,362 WARN L147 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size 29 [2021-02-24 04:21:52,378 WARN L141 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-02-24 04:21:52,380 INFO L723 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2021-02-24 04:21:52,386 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:52,387 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:21:52,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:21:52,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-02-24 04:21:52,409 WARN L147 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size 30 [2021-02-24 04:21:52,423 WARN L141 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size [2021-02-24 04:21:52,429 WARN L147 QuantifierPusher]: treesize reduction 8, result has 91.8 percent of original size 89 [2021-02-24 04:21:52,434 WARN L141 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-02-24 04:21:52,440 WARN L147 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size 31 [2021-02-24 04:21:52,442 WARN L141 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size [2021-02-24 04:21:52,445 WARN L147 QuantifierPusher]: treesize reduction 16, result has 66.0 percent of original size 31 [2021-02-24 04:21:52,461 WARN L141 QuantifierPusher]: treesize reduction 26, result has 23.5 percent of original size [2021-02-24 04:21:52,463 WARN L147 QuantifierPusher]: treesize reduction 26, result has 23.5 percent of original size 8 [2021-02-24 04:21:52,472 WARN L141 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size [2021-02-24 04:21:52,475 WARN L147 QuantifierPusher]: treesize reduction 8, result has 81.8 percent of original size 36 [2021-02-24 04:21:52,476 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:21:52,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:21:52,490 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_misc_open_#t~nondet7_17| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateFactory.newSPredicate(PredicateFactory.java:60) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.generateMetaTrace(AcceleratedInterpolationCore.java:359) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:225) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:62) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:131) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-02-24 04:21:52,498 INFO L168 Benchmark]: Toolchain (without parser) took 3810.93 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 126.9 MB in the beginning and 74.2 MB in the end (delta: 52.8 MB). Peak memory consumption was 90.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:52,499 INFO L168 Benchmark]: CDTParser took 0.21 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. [2021-02-24 04:21:52,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.77 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:52,504 INFO L168 Benchmark]: Boogie Preprocessor took 40.43 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:52,505 INFO L168 Benchmark]: RCFGBuilder took 564.04 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 125.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:52,506 INFO L168 Benchmark]: TraceAbstraction took 2914.78 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 124.9 MB in the beginning and 74.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 88.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:21:52,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 268.77 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 115.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.43 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 564.04 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 125.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2914.78 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 124.9 MB in the beginning and 74.2 MB in the end (delta: 50.7 MB). Peak memory consumption was 88.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_misc_open_#t~nondet7_17| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_misc_open_#t~nondet7_17|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...