/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:21:03,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:21:03,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:21:03,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:21:03,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:21:03,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:21:03,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:21:03,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:21:03,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:21:03,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:21:03,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:21:03,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:21:03,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:21:03,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:21:03,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:21:03,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:21:03,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:21:03,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:21:03,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:21:03,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:21:03,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:21:03,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:21:03,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:21:03,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:21:03,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:21:03,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:21:03,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:21:03,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:21:03,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:21:03,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:21:03,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:21:03,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:21:03,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:21:03,343 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:21:03,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:21:03,344 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:21:03,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:21:03,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:21:03,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:21:03,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:21:03,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:21:03,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:21:03,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:21:03,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:21:03,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:21:03,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:21:03,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:21:03,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:21:03,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:21:03,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:21:03,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:21:03,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:21:03,709 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:21:03,709 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:21:03,710 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2020-07-21 20:21:03,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded37b81f/3c7a86962e2c472c8d293a0c46d8b60e/FLAGfe0d5d1d1 [2020-07-21 20:21:04,222 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:21:04,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2020-07-21 20:21:04,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded37b81f/3c7a86962e2c472c8d293a0c46d8b60e/FLAGfe0d5d1d1 [2020-07-21 20:21:04,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded37b81f/3c7a86962e2c472c8d293a0c46d8b60e [2020-07-21 20:21:04,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:21:04,618 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:21:04,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:21:04,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:21:04,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:21:04,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cceaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04, skipping insertion in model container [2020-07-21 20:21:04,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:21:04,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:21:04,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:21:04,814 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:21:04,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:21:04,840 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:21:04,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04 WrapperNode [2020-07-21 20:21:04,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:21:04,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:21:04,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:21:04,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:21:04,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (1/1) ... [2020-07-21 20:21:04,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:21:04,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:21:04,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:21:04,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:21:04,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (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 [2020-07-21 20:21:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:21:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:21:05,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-21 20:21:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:21:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:21:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-21 20:21:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:21:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:21:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:21:05,193 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:21:05,194 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:21:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:21:05 BoogieIcfgContainer [2020-07-21 20:21:05,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:21:05,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:21:05,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:21:05,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:21:05,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:21:04" (1/3) ... [2020-07-21 20:21:05,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bada41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:21:05, skipping insertion in model container [2020-07-21 20:21:05,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:21:04" (2/3) ... [2020-07-21 20:21:05,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bada41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:21:05, skipping insertion in model container [2020-07-21 20:21:05,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:21:05" (3/3) ... [2020-07-21 20:21:05,211 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_4-2.c [2020-07-21 20:21:05,222 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:21:05,230 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:21:05,245 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:21:05,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:21:05,269 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:21:05,269 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:21:05,269 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:21:05,270 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:21:05,270 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:21:05,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:21:05,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:21:05,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-21 20:21:05,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-21 20:21:05,296 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:21:05,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:21:05,298 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:21:05,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:21:05,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2020-07-21 20:21:05,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:21:05,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87565490] [2020-07-21 20:21:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:05,367 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:21:05,368 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:21:05,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 20:21:05,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:21:05,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:21:05,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:21:05,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87565490] [2020-07-21 20:21:05,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:21:05,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:21:05,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412055368] [2020-07-21 20:21:05,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:21:05,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:21:05,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:21:05,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:21:05,449 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2020-07-21 20:21:05,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:21:05,482 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2020-07-21 20:21:05,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:21:05,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-21 20:21:05,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:21:05,494 INFO L225 Difference]: With dead ends: 29 [2020-07-21 20:21:05,494 INFO L226 Difference]: Without dead ends: 12 [2020-07-21 20:21:05,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:21:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-07-21 20:21:05,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-07-21 20:21:05,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-21 20:21:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-21 20:21:05,535 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-07-21 20:21:05,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:21:05,536 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-21 20:21:05,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:21:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-21 20:21:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-21 20:21:05,537 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:21:05,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:21:05,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:05,752 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:21:05,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:21:05,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2020-07-21 20:21:05,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:21:05,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766299503] [2020-07-21 20:21:05,754 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:05,782 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:21:05,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:21:05,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 20:21:05,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:21:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:21:05,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:21:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:21:05,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766299503] [2020-07-21 20:21:05,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:21:05,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-07-21 20:21:05,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70223827] [2020-07-21 20:21:05,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:21:05,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:21:05,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:21:05,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:21:05,873 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2020-07-21 20:21:05,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:21:05,941 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-07-21 20:21:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:21:05,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-21 20:21:05,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:21:05,944 INFO L225 Difference]: With dead ends: 20 [2020-07-21 20:21:05,944 INFO L226 Difference]: Without dead ends: 15 [2020-07-21 20:21:05,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:21:05,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-21 20:21:05,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-07-21 20:21:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-21 20:21:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-07-21 20:21:05,952 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2020-07-21 20:21:05,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:21:05,952 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-07-21 20:21:05,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:21:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-21 20:21:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-21 20:21:05,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:21:05,954 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:21:06,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:06,169 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:21:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:21:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1031021570, now seen corresponding path program 2 times [2020-07-21 20:21:06,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:21:06,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076482332] [2020-07-21 20:21:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:06,229 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 20:21:06,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:21:06,231 WARN L261 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:21:06,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:21:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:21:06,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:21:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:21:06,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076482332] [2020-07-21 20:21:06,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:21:06,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-07-21 20:21:06,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584384846] [2020-07-21 20:21:06,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 20:21:06,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:21:06,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 20:21:06,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-07-21 20:21:06,437 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 12 states. [2020-07-21 20:21:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:21:06,794 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2020-07-21 20:21:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 20:21:06,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 14 [2020-07-21 20:21:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:21:06,796 INFO L225 Difference]: With dead ends: 26 [2020-07-21 20:21:06,796 INFO L226 Difference]: Without dead ends: 21 [2020-07-21 20:21:06,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2020-07-21 20:21:06,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-21 20:21:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-21 20:21:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-21 20:21:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-07-21 20:21:06,805 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2020-07-21 20:21:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:21:06,805 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-07-21 20:21:06,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 20:21:06,806 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-07-21 20:21:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-21 20:21:06,806 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:21:06,807 INFO L422 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:21:07,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:21:07,011 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:21:07,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:21:07,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1348629730, now seen corresponding path program 3 times [2020-07-21 20:21:07,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:21:07,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255237900] [2020-07-21 20:21:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:27:09,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:27:09,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:27:09,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 20:27:09,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:27:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:27:10,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:27:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:27:10,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255237900] [2020-07-21 20:27:10,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:27:10,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2020-07-21 20:27:10,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423238048] [2020-07-21 20:27:10,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-21 20:27:10,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:27:10,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-21 20:27:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-07-21 20:27:10,368 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 24 states. [2020-07-21 20:27:19,254 WARN L193 SmtUtils]: Spent 8.64 s on a formula simplification that was a NOOP. DAG size: 56 [2020-07-21 20:27:22,874 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification that was a NOOP. DAG size: 51 [2020-07-21 20:27:24,942 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod c_main_~x~0 4294967296))) is different from false [2020-07-21 20:27:29,411 WARN L193 SmtUtils]: Spent 4.29 s on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 20:27:29,693 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 20:27:33,804 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296))) is different from false [2020-07-21 20:27:33,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:27:33,808 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-07-21 20:27:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-21 20:27:33,808 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 20 [2020-07-21 20:27:33,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:27:33,809 INFO L225 Difference]: With dead ends: 38 [2020-07-21 20:27:33,809 INFO L226 Difference]: Without dead ends: 33 [2020-07-21 20:27:33,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=379, Invalid=683, Unknown=2, NotChecked=126, Total=1190 [2020-07-21 20:27:33,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-21 20:27:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-21 20:27:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-21 20:27:33,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-07-21 20:27:33,819 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 20 [2020-07-21 20:27:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:27:33,819 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-07-21 20:27:33,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-21 20:27:33,820 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-07-21 20:27:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-21 20:27:33,821 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:27:33,821 INFO L422 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:27:34,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:27:34,022 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:27:34,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:27:34,023 INFO L82 PathProgramCache]: Analyzing trace with hash 144400734, now seen corresponding path program 4 times [2020-07-21 20:27:34,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:27:34,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2075700198] [2020-07-21 20:27:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:27:34,075 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:27:34,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:27:34,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 47 conjunts are in the unsatisfiable core [2020-07-21 20:27:34,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:27:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:27:34,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:27:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:27:35,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2075700198] [2020-07-21 20:27:35,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:27:35,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2020-07-21 20:27:35,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003278797] [2020-07-21 20:27:35,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-07-21 20:27:35,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:27:35,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-07-21 20:27:35,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2020-07-21 20:27:35,784 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 48 states. [2020-07-21 20:27:38,223 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967258) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967252) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967264) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967262) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967254) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967256) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967260) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:27:40,244 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967258) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967264) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967262) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967254) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967256) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967260) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:27:42,276 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967258) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967264) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967262) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967256) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967260) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:28:32,007 WARN L193 SmtUtils]: Spent 44.47 s on a formula simplification that was a NOOP. DAG size: 101 [2020-07-21 20:28:34,875 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967264) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967262) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967260) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:28:36,891 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967264) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967262) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:29:18,234 WARN L193 SmtUtils]: Spent 36.50 s on a formula simplification that was a NOOP. DAG size: 86 [2020-07-21 20:29:22,442 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967266) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:29:24,456 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967268) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:29:26,463 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967272) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967270) 4294967296))) is different from false [2020-07-21 20:29:46,688 WARN L193 SmtUtils]: Spent 15.66 s on a formula simplification that was a NOOP. DAG size: 66 [2020-07-21 20:29:49,051 WARN L838 $PredicateComparison]: unable to prove that (and (< 0 (mod (+ c_main_~x~0 4294967282) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967294) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967288) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967286) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967276) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967284) 4294967296)) (< 0 (mod c_main_~x~0 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967274) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967280) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967290) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967278) 4294967296)) (< 0 (mod (+ c_main_~x~0 4294967292) 4294967296))) is different from false [2020-07-21 20:29:57,382 WARN L193 SmtUtils]: Spent 5.04 s on a formula simplification that was a NOOP. DAG size: 56 [2020-07-21 20:30:02,183 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 51 [2020-07-21 20:30:05,597 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 46 [2020-07-21 20:30:08,075 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 20:30:09,700 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 20:30:10,222 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-07-21 20:30:53,818 WARN L193 SmtUtils]: Spent 41.47 s on a formula simplification that was a NOOP. DAG size: 113 [2020-07-21 20:30:53,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:30:53,822 INFO L93 Difference]: Finished difference Result 62 states and 85 transitions. [2020-07-21 20:30:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-07-21 20:30:53,822 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 32 [2020-07-21 20:30:53,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:30:53,824 INFO L225 Difference]: With dead ends: 62 [2020-07-21 20:30:53,824 INFO L226 Difference]: Without dead ends: 57 [2020-07-21 20:30:53,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 194.8s TimeCoverageRelationStatistics Valid=1205, Invalid=2599, Unknown=14, NotChecked=1152, Total=4970 [2020-07-21 20:30:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-21 20:30:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-21 20:30:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-21 20:30:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2020-07-21 20:30:53,841 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 32 [2020-07-21 20:30:53,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:30:53,841 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2020-07-21 20:30:53,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-07-21 20:30:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2020-07-21 20:30:53,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-21 20:30:53,843 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:30:53,843 INFO L422 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:30:54,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:30:54,048 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:30:54,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:30:54,048 INFO L82 PathProgramCache]: Analyzing trace with hash -726077986, now seen corresponding path program 5 times [2020-07-21 20:30:54,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:30:54,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772548026] [2020-07-21 20:30:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in