/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 05:24:10,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 05:24:10,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 05:24:10,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 05:24:10,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 05:24:10,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 05:24:10,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 05:24:10,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 05:24:10,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 05:24:10,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 05:24:10,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 05:24:10,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 05:24:10,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 05:24:10,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 05:24:10,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 05:24:10,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 05:24:10,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 05:24:10,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 05:24:10,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 05:24:10,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 05:24:10,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 05:24:10,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 05:24:10,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 05:24:10,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 05:24:10,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 05:24:10,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 05:24:10,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 05:24:10,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 05:24:10,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2021-04-16 05:24:10,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 05:24:10,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 05:24:10,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 05:24:10,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 05:24:10,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 05:24:10,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 05:24:10,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 05:24:10,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 05:24:10,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 05:24:10,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 05:24:10,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 05:24:10,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 05:24:10,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 05:24:10,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 05:24:10,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-16 05:24:10,225 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-04-16 05:24:10,225 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 05:24:10,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 05:24:10,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 05:24:10,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 05:24:10,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 05:24:10,558 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 05:24:10,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound2.c [2021-04-16 05:24:10,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388bc6a23/db1ee0027e164b8d9d5a3ad888dd709f/FLAG387ea79a4 [2021-04-16 05:24:10,964 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 05:24:10,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound2.c [2021-04-16 05:24:10,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388bc6a23/db1ee0027e164b8d9d5a3ad888dd709f/FLAG387ea79a4 [2021-04-16 05:24:10,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388bc6a23/db1ee0027e164b8d9d5a3ad888dd709f [2021-04-16 05:24:10,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 05:24:10,983 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-16 05:24:10,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 05:24:10,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 05:24:10,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 05:24:10,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 05:24:10" (1/1) ... [2021-04-16 05:24:10,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c10051c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:10, skipping insertion in model container [2021-04-16 05:24:10,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 05:24:10" (1/1) ... [2021-04-16 05:24:10,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 05:24:11,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 05:24:11,122 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound2.c[712,725] [2021-04-16 05:24:11,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 05:24:11,141 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 05:24:11,170 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/freire1_unwindbound2.c[712,725] [2021-04-16 05:24:11,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 05:24:11,206 INFO L208 MainTranslator]: Completed translation [2021-04-16 05:24:11,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11 WrapperNode [2021-04-16 05:24:11,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 05:24:11,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 05:24:11,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 05:24:11,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 05:24:11,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 05:24:11,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 05:24:11,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 05:24:11,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 05:24:11,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (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 [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 05:24:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 05:24:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 05:24:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 05:24:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 05:24:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 05:24:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2021-04-16 05:24:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 05:24:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 05:24:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 05:24:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 05:24:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 05:24:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 05:24:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 05:24:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 05:24:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 05:24:11,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 05:24:11,564 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 05:24:11,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:11 BoogieIcfgContainer [2021-04-16 05:24:11,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 05:24:11,566 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2021-04-16 05:24:11,566 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2021-04-16 05:24:11,566 INFO L275 PluginConnector]: IcfgTransformer initialized [2021-04-16 05:24:11,568 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:11" (1/1) ... [2021-04-16 05:24:11,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 05:24:11 BasicIcfg [2021-04-16 05:24:11,595 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2021-04-16 05:24:11,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 05:24:11,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 05:24:11,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 05:24:11,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 05:24:10" (1/4) ... [2021-04-16 05:24:11,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc7ef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 05:24:11, skipping insertion in model container [2021-04-16 05:24:11,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 05:24:11" (2/4) ... [2021-04-16 05:24:11,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc7ef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 05:24:11, skipping insertion in model container [2021-04-16 05:24:11,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 05:24:11" (3/4) ... [2021-04-16 05:24:11,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc7ef56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 05:24:11, skipping insertion in model container [2021-04-16 05:24:11,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 16.04 05:24:11" (4/4) ... [2021-04-16 05:24:11,599 INFO L111 eAbstractionObserver]: Analyzing ICFG freire1_unwindbound2.cJordan [2021-04-16 05:24:11,602 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2021-04-16 05:24:11,617 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 05:24:11,636 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 05:24:11,648 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 05:24:11,649 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-16 05:24:11,649 INFO L378 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2021-04-16 05:24:11,649 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 05:24:11,649 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 05:24:11,649 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 05:24:11,649 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 05:24:11,649 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 05:24:11,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-04-16 05:24:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-04-16 05:24:11,662 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 05:24:11,663 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 05:24:11,663 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 05:24:11,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 05:24:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash -630084848, now seen corresponding path program 1 times [2021-04-16 05:24:11,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 05:24:11,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542071106] [2021-04-16 05:24:11,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 05:24:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:11,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:11,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:11,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:11,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:11,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 05:24:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:11,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:11,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 05:24:11,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542071106] [2021-04-16 05:24:11,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 05:24:11,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-16 05:24:11,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599163345] [2021-04-16 05:24:11,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-16 05:24:11,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 05:24:11,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-16 05:24:11,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 05:24:11,888 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 05:24:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 05:24:11,943 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-04-16 05:24:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-16 05:24:11,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-04-16 05:24:11,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 05:24:11,949 INFO L225 Difference]: With dead ends: 23 [2021-04-16 05:24:11,949 INFO L226 Difference]: Without dead ends: 18 [2021-04-16 05:24:11,951 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-16 05:24:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-04-16 05:24:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-04-16 05:24:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 05:24:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-04-16 05:24:11,970 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2021-04-16 05:24:11,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 05:24:11,971 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-04-16 05:24:11,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 05:24:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-04-16 05:24:11,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 05:24:11,972 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 05:24:11,972 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 05:24:11,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 05:24:11,972 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 05:24:11,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 05:24:11,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1971636769, now seen corresponding path program 1 times [2021-04-16 05:24:11,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 05:24:11,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005154812] [2021-04-16 05:24:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 05:24:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:12,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:12,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 05:24:12,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 05:24:12,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:12,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 05:24:12,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:12,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 05:24:12,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 05:24:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 05:24:12,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 05:24:12,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 05:24:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 05:24:12,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005154812] [2021-04-16 05:24:12,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 05:24:12,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 05:24:12,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243872100] [2021-04-16 05:24:12,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-16 05:24:12,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-16 05:24:12,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-16 05:24:12,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-16 05:24:12,054 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 05:24:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 05:24:12,119 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2021-04-16 05:24:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-16 05:24:12,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-04-16 05:24:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 05:24:12,120 INFO L225 Difference]: With dead ends: 19 [2021-04-16 05:24:12,120 INFO L226 Difference]: Without dead ends: 19 [2021-04-16 05:24:12,121 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.6ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-16 05:24:12,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-04-16 05:24:12,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-04-16 05:24:12,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 05:24:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-04-16 05:24:12,123 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2021-04-16 05:24:12,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 05:24:12,123 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-04-16 05:24:12,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 05:24:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-04-16 05:24:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-04-16 05:24:12,136 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 05:24:12,136 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 05:24:12,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 05:24:12,137 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 05:24:12,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 05:24:12,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1972709245, now seen corresponding path program 1 times [2021-04-16 05:24:12,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-16 05:24:12,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498059058] [2021-04-16 05:24:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 05:24:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 05:24:12,146 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 05:24:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 05:24:12,154 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 05:24:12,192 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-16 05:24:12,193 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 05:24:12,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 05:24:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 05:24:12 BasicIcfg [2021-04-16 05:24:12,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 05:24:12,225 INFO L168 Benchmark]: Toolchain (without parser) took 1241.61 ms. Allocated memory is still 222.3 MB. Free memory was 188.4 MB in the beginning and 172.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,225 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 222.3 MB. Free memory is still 204.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 05:24:12,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.82 ms. Allocated memory is still 222.3 MB. Free memory was 188.3 MB in the beginning and 204.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,229 INFO L168 Benchmark]: Boogie Preprocessor took 33.26 ms. Allocated memory is still 222.3 MB. Free memory was 204.8 MB in the beginning and 203.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,229 INFO L168 Benchmark]: RCFGBuilder took 322.92 ms. Allocated memory is still 222.3 MB. Free memory was 203.1 MB in the beginning and 189.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,229 INFO L168 Benchmark]: IcfgTransformer took 29.58 ms. Allocated memory is still 222.3 MB. Free memory was 189.5 MB in the beginning and 188.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,230 INFO L168 Benchmark]: TraceAbstraction took 628.17 ms. Allocated memory is still 222.3 MB. Free memory was 188.0 MB in the beginning and 172.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2021-04-16 05:24:12,232 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 222.3 MB. Free memory is still 204.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 220.82 ms. Allocated memory is still 222.3 MB. Free memory was 188.3 MB in the beginning and 204.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 12.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.26 ms. Allocated memory is still 222.3 MB. Free memory was 204.8 MB in the beginning and 203.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 322.92 ms. Allocated memory is still 222.3 MB. Free memory was 203.1 MB in the beginning and 189.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * IcfgTransformer took 29.58 ms. Allocated memory is still 222.3 MB. Free memory was 189.5 MB in the beginning and 188.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 628.17 ms. Allocated memory is still 222.3 MB. Free memory was 188.0 MB in the beginning and 172.2 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 33, overapproximation of someBinaryArithmeticDOUBLEoperation at line 29. Possible FailurePath: [L24] int counter = 0; VAL [\old(counter)=55, counter=0] [L26] int r; [L27] double a, x; [L28] a = __VERIFIER_nondet_double() [L29] x = a / 2.0 [L30] r = 0 VAL [\old(counter)=0, a=53, counter=0, r=0] [L32] EXPR counter++ VAL [\old(counter)=0, a=53, counter=1, counter++=0, r=0] [L32] COND TRUE counter++<2 [L33] CALL __VERIFIER_assert((int)(r*r - a - r + 2*x) == 0) VAL [\old(cond)=0, \old(counter)=0, counter=1] [L17] COND TRUE !(cond) VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1] [L19] reach_error() VAL [\old(cond)=0, \old(counter)=0, cond=0, counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 547.0ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 140.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 38 SDtfs, 12 SDslu, 20 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 106.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.0ms SsaConstructionTime, 44.0ms SatisfiabilityAnalysisTime, 178.5ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...