./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:38:29,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:38:29,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:38:29,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:38:29,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:38:29,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:38:29,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:38:29,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:38:29,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:38:29,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:38:29,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:38:29,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:38:29,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:38:29,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:38:29,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:38:29,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:38:29,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:38:29,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:38:29,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:38:29,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:38:29,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:38:29,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:38:29,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:38:29,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:38:29,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:38:29,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:38:29,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:38:29,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:38:29,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:38:29,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:38:29,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:38:29,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:38:29,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:38:29,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:38:29,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:38:29,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:38:29,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:38:29,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:38:29,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:38:29,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:38:29,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:38:29,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 09:38:29,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:38:29,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:38:29,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:38:29,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:38:29,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:38:29,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:38:29,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:38:29,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:38:29,811 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:38:29,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:38:29,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:38:29,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:38:29,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:38:29,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:38:29,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:38:29,814 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 09:38:29,815 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 09:38:29,815 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 09:38:29,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:38:29,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:38:29,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:38:29,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:38:29,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:38:29,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:38:29,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:38:29,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:38:29,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:38:29,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:38:29,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:38:29,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:38:29,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cbe8dd40fecf4391efe5e4ba3939c64a9fdbbfb53083def47a68bbefda43a3c [2022-11-20 09:38:30,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:38:30,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:38:30,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:38:30,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:38:30,238 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:38:30,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-11-20 09:38:34,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:38:34,431 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:38:34,432 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2022-11-20 09:38:34,443 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/data/48c538a06/e1aa33120ce544e39ec91516feb7bbcd/FLAG59f0a305a [2022-11-20 09:38:34,477 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/data/48c538a06/e1aa33120ce544e39ec91516feb7bbcd [2022-11-20 09:38:34,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:38:34,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:38:34,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:38:34,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:38:34,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:38:34,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:34,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15266a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34, skipping insertion in model container [2022-11-20 09:38:34,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:34,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:38:34,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:38:34,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-11-20 09:38:34,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:38:34,846 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:38:34,894 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c[5938,5951] [2022-11-20 09:38:34,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:38:34,917 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:38:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34 WrapperNode [2022-11-20 09:38:34,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:38:34,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:38:34,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:38:34,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:38:34,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:34,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:34,986 INFO L138 Inliner]: procedures = 25, calls = 120, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 248 [2022-11-20 09:38:34,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:38:34,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:38:34,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:38:34,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:38:35,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:38:35,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:38:35,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:38:35,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:38:35,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (1/1) ... [2022-11-20 09:38:35,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:38:35,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:38:35,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:38:35,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63065115-e91f-4c0c-8156-3b0740094980/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:38:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:38:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:38:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:38:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:38:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:38:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:38:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:38:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:38:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:38:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:38:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 09:38:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 09:38:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:38:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 09:38:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 09:38:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 09:38:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 09:38:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:38:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:38:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:38:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:38:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:38:35,153 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:38:35,341 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:38:35,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:38:36,100 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:38:36,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:38:36,291 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 09:38:36,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:36 BoogieIcfgContainer [2022-11-20 09:38:36,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:38:36,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:38:36,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:38:36,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:38:36,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:38:34" (1/3) ... [2022-11-20 09:38:36,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e48376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:36, skipping insertion in model container [2022-11-20 09:38:36,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:38:34" (2/3) ... [2022-11-20 09:38:36,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e48376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:38:36, skipping insertion in model container [2022-11-20 09:38:36,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:38:36" (3/3) ... [2022-11-20 09:38:36,311 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2022-11-20 09:38:36,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:38:36,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-20 09:38:36,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:38:36,589 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 09:38:36,656 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 09:38:36,690 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 284 transitions, 640 flow [2022-11-20 09:38:36,693 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 284 transitions, 640 flow [2022-11-20 09:38:36,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 284 transitions, 640 flow [2022-11-20 09:38:36,833 INFO L130 PetriNetUnfolder]: 14/252 cut-off events. [2022-11-20 09:38:36,839 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:38:36,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 252 events. 14/252 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 489 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 208. Up to 3 conditions per place. [2022-11-20 09:38:36,874 INFO L119 LiptonReduction]: Number of co-enabled transitions 14400 [2022-11-20 09:38:44,915 INFO L134 LiptonReduction]: Checked pairs total: 103008 [2022-11-20 09:38:44,916 INFO L136 LiptonReduction]: Total number of compositions: 194 [2022-11-20 09:38:44,927 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144 places, 133 transitions, 338 flow [2022-11-20 09:39:32,276 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 761257 states, 760975 states have (on average 5.84700154407175) internal successors, (4449422), 761256 states have internal predecessors, (4449422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:39:32,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:39:32,337 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c565fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:39:32,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2022-11-20 09:39:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 761257 states, 760975 states have (on average 5.84700154407175) internal successors, (4449422), 761256 states have internal predecessors, (4449422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:39:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 09:39:33,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:39:33,856 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 09:39:33,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 49 more)] === [2022-11-20 09:39:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:39:33,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1076, now seen corresponding path program 1 times [2022-11-20 09:39:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:39:33,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16175333] [2022-11-20 09:39:33,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:39:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:39:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:39:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:39:34,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:39:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16175333] [2022-11-20 09:39:34,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16175333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:39:34,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:39:34,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 09:39:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173367749] [2022-11-20 09:39:34,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:39:34,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:39:34,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:39:34,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:39:34,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:39:35,694 INFO L87 Difference]: Start difference. First operand has 761257 states, 760975 states have (on average 5.84700154407175) internal successors, (4449422), 761256 states have internal predecessors, (4449422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)